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Three Way Shootout Part 4: Flare, Astro, and Conclusions

Dustin Abbott

April 27th, 2015

We are now approaching the finish line!  I have taken nearly 800 photos as a part of this review process in a variety of settings (this on top of the hundreds previously I had taken during my review period of the Canon EF 16-35mm f/4L IS USM  and  Tamron SP 15-30mm f/2.8 Di VC USD Lens  in my review of those lenses) and I feel like I now have a good sense of each lenses’ strengths, weaknesses, and purpose.  This final part of our Three Way Shootout will focus on three additional areas of comparison (Flare Resistance, Astraphotography and Coma, and Handling) before we look hard at each lens’ value and helping you decide which one is right for you.

Flare Resistance

The ability to resist flare without veiling, ghosting, and a loss of contrast is very important in a wide angle lens.  Some of those qualities may have artistic merit in a wide aperture prime lens for portraiture or fine art shots, but not in a wide angle lens.  All of those things are going to be distractions in a wide angle landscape shot and are often very difficult to correct for in post.  Vignetting or chromatic aberrations are much easier to deal with than veiling or ghosting artifacts.  The good news is that all of these lenses do a reasonable job, and the new Canon f/4L and the Tamron do an exceptional job.  Take a look at the beginning of this video for the section on Flare Resistance.

If you want to take a look at the original photos, I am including them here below.  I’ve done a controlled test from each lens at apertures of f/2.8 (or f/4 with the 16-35mm f/4L), f/5.6, and f/11.

Canon f/4L IS:

Canon f/2.8L II

Tamron 15-30 VC

You can see that the smaller aperture is most likely to introduce some kind of flare artifact, although none of these lenses produce anything too significant in this test.  Veiling is also quite well controlled.   The older Canon is (unsurprisingly) the least flare resistant.  Coatings have significant improved in recent years.  Both the f/4L and the Tamron do exceptionally well here, with a very faint win going to the Canon.

The f/11 shot in this series gives us a nice look at the sunburst/starburst effect from these three lenses.  The older f/2.8L is in some ways the most interesting, with some extremely long blades.  Those could also be distracting if they extend into a useful part of your image.  This is a taste thing.  The Tamron produces a less extreme, but very nice result.  My least favorite is the f/4L, but all of them do quite a nice job and are a far cry from the boring sunstar produced by either my Rokinon 14mm full frame lens or the Rokinon 12mm f/2 lens I have for mirrorless bodies.

Just for comparison sake, here is what my Rokinon 14mm f/2.8 did in the same test.  It should be noted, however, that this lens has a scratch on the rear element that may be affecting its performance here.  I’ve not really had an issue with flare in the past.

Astraphotography and Coma

Almost everyone loves the incredible pictures that can be taken of the starry skies at night, and it certainly is a great application of these lenses.  If you aren’t familiar with shooting this kind of image, I’ve written (and recorded) a tutorial for how to to both shoot and process nightscape images.  My lens of choice for the past several years has been the Rokinon 14mm (I used it for the image above).  It has been chosen by a number of professionals for its low coma and wide angle of view over a number of far more expensive competitors.  Can one of these lenses dethrone it?

I received the two Canons about 10 days before the Tamron was available to me (for this second time), so I did a number of comparisons between them. One thing that I really wanted to do as a part of this comparison was to test the lenses for astraphotography. Any wide angle lens that I use will definitely do some duty shooting the night sky, and I wasn’t really satisfied with the results that I got from the Canon 16-35mm f/4L last summer. I wanted to give it a second try.

I’ve previously noted in a number of reviews that I find that one can much better use a lens when you become familiar with it. Every lens has its own quirks. I rediscovered one from the Canon EF 16-35mm f/4L; you cannot trust infinity focus by just using the distance scale. I didn’t know exactly where proper infinity focus comes, but this is the second copy that I have used, and in neither case was I able to go out in the dark and trust that setting the lens to the hard stop at infinity would produce proper focus on the stars. From the size of the star highlights it is clear that the lens focuses beyond infinity (it begins to go out of focus and focuses on nothing).

To infinity and beyond isn’t a good thing, here.

As a result, my first round of astraphotography photos were pretty much spoiled. This is kind of a big deal, because I was able to go out with the Tamron and get really great results using the same technique a few months ago.  The results from the Canon 16-35mm f/2.8L II weren’t much better.

Before testing the lenses for astraphotography again I did something that you should do, too, if you decide to do this type of shooting; I determined in the daytime where infinity focus actually was.  I did this by focusing on the sky (clouds) during the day by autofocusing of them, and then noting where infinity focus was (in the case of the Canons it was actually at the beginning of the long bar that leads to ∞ in the focus window.  I confirmed that focus at night by using Live View 10x and manually focusing on a bright object in the night sky (Venus, in this case).  So beware that if you own or purchase either Canon lens you will need to figure out where infinity focus actually is, as the manual focus ring will focus beyond infinity. In all fairness, however, the majority of my most successful nightscapes (check out some of them here) have been shot with the Rokinon 14mm f/2.8, and its calibration isn’t even close to being accurate at infinity (much worse than the Canons). As far as focus calibration goes for this type of shooting, however, the Tamron 15-30 VC wins the prize.  Infinity focus comes either at or very close to where it is indicated by the hard stop.

That bit of logistics out of the way, I proceeded to shoot a series of night sky images with all four lenses (the Rokinon provided a baseline for me).  We are going to get critical in a moment, but let me first say that I was relieved to produce nice looking nightscape images with all of the lenses.  That was a relief to me, as I had previously been disappointed by the results from the 16-35mm f/4L, and it is otherwise an amazing lens.  That being said, however, two of these lenses are more suited to this purpose than the others.  I strongly suggest that you take a look at this video starting at the 5:45 minute mark to get the best look at the performance from these lenses in astraphotography.  It is hard to tell the story in just the images shared below.

To summarize the findings from this test:

The Canon EF 16-35mm f/2.8L II produces the worst coma of the bunch.  It has the advantage of an f/2.8 aperture over its f/4 brother, but the advantage ends there.  Star points become the shape of flying ducks (they acquire wings) in the corners of the image.  This becomes increasingly obvious with the brighter points of light.  Bright points of light also have a bit of a smear around them that makes them look look more mush and less sharp.  Star points also don’t look particularly sharp and precise even in the center of the frame.

The Canon EF 16-35mm f/4L IS mostly suffers in this comparison because of its less than desirable maximum aperture for this time of work.  There is somewhat a of sweet spot for this kind of shooting (between 15-20 seconds), as even an exposure of 30 seconds will begin to show some movement in the stars (the beginning of “star trail” photography).  The other lenses let in (theoretically) twice as much light as the f/4L IS, meaning that you have to either jack up the ISO settings or use a longer shutter speed.  Neither of these are particularly appealing.  The other challenge is that while the coma isn’t as bad as the f/2.8L, star points in a number of places around the edge of the image look wedge or diamond shaped.  Even in the center of the image, however, the star points are less distinct than those of the Tamron or the Rokinon – even with identical settings.  They are elongated and stretched rather than precise.  The overall “look”of the image isn’t bad, but it certainly does not hold up under scrutiny.  If this is an important use of a wide angle lens for you, the f/4L IS may not be your best choice for a number of reasons.

The Rokinon 14mm f/2.8 has been the champion for this type of work (along with the amazing Zeiss Distagon T* 2.8/15mm), but its days at the top of the heap are now over.  It still has a very good coma result, with light points only become distorted somewhat in the extreme corners, but the incredibly heavy vignetting also reduces its light gathering efficiency in the corners.  It also isn’t as sharp as the Tamron wide open, and that makes the star points less precise (I have often used this lens at f/4 when conditions allow to get sharper nightscapes from it).  It is still a great budget option for this kind of work, but we have a new king.

The Tamron SP 15-30mm f/2.8 Di VC USD is the clear winner of our comparison.  It’s vignette performance is excellent, as is its sharpness wide open.  Star points appear the most precise and sharp, and the extreme corners only produce a bit of elongation on star points (a bit of a tail but no wings!).  The center performance is clearly the best, and its excellent contrast makes for great looking nightscape images.  I even stopped it down to f/4 and shot it with identical settings to the Canon f/4L and the results clearly favored the Tamron.  It isn’t coma free, but it is better than the rest and is my new choice for this type of work.

Another photographer named Ron Brunsvold has taken the time to do a more scientific approach to finding the best wide angle lens for shooting nightscapes. I would encourage you to take a look at his findings here as he tests even more lenses in a controlled environment.  He summarizes by saying, “Bottom line is that it will take a bag full of lenses to accomplish or in some cases slightly exceed the performance of a single Tamron SP 15-30mm lens.” He also discovered what has unfortunately been my own conclusion; the Canon 16-35mm f/4L IS excels in many areas, but low light or night sky performance is not one of them.

If shooting astraphotography is a priority for you, I encourage you to take a close look at the Tamron.  It does a great job for this type of work.

Handling, Autofocus, and Handholding (Image Stabilizer)

There is more to these lenses than just their optics.  While it is more difficult to scientifically quantify the difference in handling on each of these lenses, I can relay my feelings in using each one.  Ironically, I would have to say that it is the older lens that wins this prize for me.  The EF 16-35mm f/2.8L II is still a great lens to use in the field.  When it was released the 82mm front filter thread was an issue as it was larger than the 77mm standard and few lenses shared it.  In the past 8 years that has changed as lenses have trended towards larger front elements and now a number of lenses use the 82mm filter size.  The filters are more common and thus cheaper.  The zoom ring is by far the best of the bunch here, moving effortlessly in a manner that reminds me of some of the 70-200mm variants.  By comparison the other two lenses zoom ring require more effort and just feel a little “rougher” by comparison.  All of these lenses handle well, don’t get me wrong, but the older Canon just feels the most refined.

The demands on an autofocus system are lower on wide angle lenses as opposed to telephoto lenses.  For example, the depth of field at 15mm, f/2.8, and a subject 8 feet from the camera is more than 85 feet!  Change the focal length to 150mm and leave all the other variables the same and the depth of field is less than 2 inches.  You quickly get a sense of the difference in the demand for precision.  This isn’t to to say that wide angle lenses don’t need to focus accurately.  They do, but they don’t have to work quite as hard to get accurate results.  I can’t report any issue with focus accuracy with any of these lenses.  I’ve had consistent, repeatable results both in this test period along with my previous test periods for the f/4L IS and the Tamron.

When using the center point of the Canon 6D in decent light it would be hard to distinguish focus speed.  They all focus quickly and accurately. In the field, there was a bit less hesitation from the f/4L IS over the Tamron using the outer points.  The lenses do have a different feel even if there isn’t much variation in speed.  The Tamron seems to lag for a split second while inertia builds.  The Canons don’t pause in that way, but actual focus lock speed is roughly the same on the center point. The Tamron was able to focus accurately in extremely low light conditions.  The improved light gathering of the f/2.8 variants help in low light focusing.  If I were to give an edge to any of these lenses overall, however, it would be the to f/4L IS.  It focuses very quickly and very accurately and seems the most refined.

The f/4L IS and the Tamron both have image stabilizers (Vibration Compensation on the Tamron).  Some would debate whether or not an image stabilizer is necessary in a wide angle lens, and I will definitely say that image stabilization is more important in telephotos lenses.  Still, the image stabilizers do play an important role with these lenses, giving some versatility in situations where you desire a longer shutter speed and don’t have a tripod or when you want to shoot video.  I shot video sequences walking with the lenses and there is a definite difference between the steadiness of footage taken with the stabilizers on and the footage with them off.

I was able to achieve slightly better results with the Tamron than the Canon. I was able to handhold the Tamron at 30mm at speeds as low as .8 seconds, while the lowest I achieved with the Canon (at 35mm) is .5 seconds.  I was able to achieve the result with the Tamron more consistently.  It ironically may be the increased weight and bulk of the Tamron that aids in handholding it.  Just note that there is a law of diminishing returns with wide angle zooms as compared with the results with telephoto lenses. There is a vast amount of difference in the amount of shutter/mirror vibration in a 1/10th second shutter speed compared to a 1 second shutter speed. The good news is that with either lens handholding a 1/10th shutter speed is a cakewalk.  This is a definite advantage for these lenses over the older Canon f/2.8L, particularly when both of these lenses cost considerably less.  A slight edge goes to the Tamron for handholding.  They’ve done a great job with their VC systems on a variety of lenses that I’ve tested.  I was able to take some very cool pictures handheld at shutter speeds approaching one second that were still sharp and very stylish, plus it made a difference in panning shots.  See a few examples below:

We have already covered in a previous article that the Tamron is considerably bigger and heavier than the other two lenses.  If your goal is to keep the ounces down for backpacking or because of some physical issue, then our winner here is the f/4 IS.  The Tamron is packing a lot of technology and optical goodness into that package, but it definitely comes at a size and weight premium.

There is an elephant in the room when it comes to handling and use issues, and that is the no filter issue for the Tamron.  Unlike the other two it has a bulbous front element and a fixed lens hood that precludes the use of traditional screw on filters.  This is my single biggest issue with the Tamron. If it could use traditional filters I would declare it the hands down winner of our comparison.  But not being able to use traditional filters is a big deal for a lot of people…including me.  It means that (at least for the moment), I won’t be taking shots like this with the Tamron:

One of these is from the f/2.8L, the second pair from the f/4L.  None of them are from the Tamron.

Still, I will approach it the same way I did the Rokinon 14mm f/2.8 – exposure bracketing, and then investing in a square filter solution when it arrives.  I can’t help but note that the lack of screw in filters for the Nikon 14-24mm f/2.8G hasn’t seemed to hurt its widespread adoption or use by a horde of landscape photographers.  I believe the Tamron will be a popular enough lens (there is already a serious backlog of preorders) that someone will create a square filter system for it. Polarizers are often not a great idea on lenses this wide; a graduated ND filter is far more important to me in this type of lens than a polarizer. What hurts is not being able to use my ND64 or ND1000 filters.  Note also that there will be additional expense involved with purchasing aftermarket filter systems for the Tamron that simply won’t exist in the same fashion for either of the Canons.  This is an important consideration as well.  None of these lenses is a perfect solution, and if you are a big filter user, you will probably be better served with choosing one of the Canons.

One final (minor) issue:  the Tamron has a fixed lens hood and thus its lens cap fits over the hood like that of the Nikon 14-24, Rokinon 14mm, and Zeiss 15mm (amongst others).  It is the least offensive of these lenses, however, because the thickness of the lens cap is only about an inch compared to 2-3 times that for some of the others.  It seems to fit securely, and is still slim enough to go into a pocket.  It is also easier to put on and take off than traditional flat, pinch caps but does take up more room for storage than they do (it is roughly three times as thick).

Price and Value:

Some of you are reading this article out of intellectual curiosity, some to help validate the choice you already made, and some of you are serious shoppers that are looking for advice on where to invest your money.  Let me preface this by saying that I don’t think you can go wrong between the f/4L IS or the Tamron.  Both of them are exceptional lenses.  But what will matter is the areas of particular strength and whether or not those areas align with your own needs.  Unfortunately there is no lens here that has it all; as always, there is some give and take.

  • The 16-35 f/2.8L has a wide aperture that lets in twice the light as the f/4 lens and retains the ability to use traditional filters, but it lacks an image stabilizer and has the weakest optics.
  • The 16-35mm f/4L IS has amazing optics and an effective image stabilizer, and it too retains the ability to use traditional filters, but it has a slower aperture than the other two and is thus less appealing as an event/wedding lens where you need to stop action and need the wider aperture.
  • The Tamron 15-30 VC has the wide aperture, image stabilizer, and the great, modern optics, but at the cost of being able to use traditional filters.

I’ve put together a series of bullet points to help your decision.

  • The Tamron has a six year warranty period vs. the 1 year warranty period the Canons (in North America). I’ve had a great ongoing experience with Tamron’s warranty service, so this is, to me, a very valuable bonus.
  • Experience says that you are probably more likely to need that warranty with the Tamron, though no lens is exempt from defect. At the same time, there are a couple of my Canon lenses that I have felt like needed service, but I have not sent them in for adjustment or repair because they were (quickly) out of warranty.
  • If you are a JPEG shooter some Canon bodies will correct for “Peripheral Shading” (vignetting) and even Chromatic Aberrations in body…but only with Canon branded lenses.
  • Third party manufacturers have to reverse engineer autofocus algorithms, so there is always an (off) chance that Canon could change those algorithms with a future body and leave you with a lens that needs updating. This is unlikely, but the risk is higher with a third party lens. In Tamron’s defense, they have done an exceptional job with their USD/PZD lenses and I have found focus accuracy very high with the four such lenses that I have owned (three of which remain in my kit).  I have used or reviewed almost all the others and had good results with them as well.
  • Historically Canon L series lenses have held their value very, very well. It is not uncommon to buy a used Canon L lens, use it for a few years, and then resell it for just about what you paid for it. The exception to this rule has been when buying newly released Canon lenses new; in recent years they have often had a heavy price premium in the first six months to a year and then the price relaxes somewhat. I have felt bad for those that paid $2400+ for the new EF 24-70mm f/2.8 II only to see the price settle down to $2000 (or less) and those that paid the ridiculous $1600 for the new EF 24-70mm f/4L IS only to see its price quickly drop to $1000 (or cheaper). The lesson here: Canon lenses hold their value well…once market value has been established.
  • Historically third party lenses have not held their value as well. In past years Tamron and Sigma lenses would often quickly lose several hundred dollars off their purchase price, and then settle into a holding pattern around there. There was also a prevailing attitude that third party lenses weren’t as good. This perception seems to be changing on both levels now. Many professionals now have a Tamron or Sigma in their kit, and have often chosen that lens over an equivalent first party lens. Third party lenses are a LOT better than what they used to be. Furthermore, the Tamron 24-70 f/2.8 VC (sticking with this focal length example) was released at about the same time as the Canon 24-70II. It was released at an asking price of $1299 in the US. Its current list price is…$1299. It has seen instant rebates of around $100 (like all lenses) periodically, but thus far it has actually held its value very well. I checked the used market and found that most used copies are selling for well over a thousand dollars while copies of the Canon 24-70II are selling around $1800-1900. The lesson here is the same as before: a good lens at a fair market price seems to hold its value well.
  • Both the Tamron 15-30 VC and Canon 16-35mm f/4L IS are released at very reasonable prices relative to their performance, and I noted with delight in my review of the Canon that it was proving the exception to the rule of Canon’s recent exorbitant initial pricing. It has held the price point of $1199 thus far, and other than the usual sales and rebates, I fully anticipate this continuing to be the market price. The same applies to the Tamron, which is being introduced at the same price point despite being an f/2.8 lens. Its price significant undercuts the Canon f/2.8 variant ($1699) and the Nikon 14-24 f/2.8G ($1999). I fully anticipate Tamron stealing some market share from both of those lenses.

I don’t know what Canon is going to do regarding to do with our third member of this shootout – the EF 16-35mm f/2.8L. The lens was released in early 2007, and while a lot of people have used it, enjoy it, and have produced amazing images with it, the consensus has always been that it wasn’t as good as it could be…particularly as a landscape lens. Canon has continued to sell it at a $500 premium over the newer (and much better) f/4L IS variant. There are a number of event photographers and journalists that need the better light gathering of an f/2.8 lens and it has few competitors (the Tokina 16-28 f/2.8 is one, but their market share is low). I suspect the new Tamron (which is making far more of a splash already than the Tokina ever did) is going to steal a number of those sales with both a much better price and pretty much better everything else, too. So what will Canon do?

Probably nothing.

They will continue to get sales from both those who mistrust third party lenses and those who don’t know there is a better option. They will also continue to get sales from those who value the cache of the red ring. And, in their own sweet time, they will probably bring out a new lens with the wider aperture and the optical performance of the f/4L IS. Just expect to pay a lot for that lens.

In the meantime, I feel that both the f/4L IS and the Tamron 15-30 VC offer excellent value for their price points.  The Tamron is the greatest value, as its direct f/2.8 competitors cost more and offer less.  The only lens here that I would question the value of is the f/2.8L; it offers less in most areas for more money.

Conclusions

You can watch some of my conclusions on these three lenses starting at the 11 minute mark of the video below, or read on beneath.

Who Are They For?

The Canon EF 16-35mm f/2.8L II shows its age in many ways while still pulling out a few tricks.  I feel like this lens is going to require more time spent in processing to produce images similar to the other two…but for the most part it could be done.  You can add in contrast, reduce the vignetting, and, in most cases, deal with the chromatic aberrations.  The one thing you can’t fake is sharpness in the corners, so this lens would not be my top pick for those of you who feel you will shoot a lot of landscapes.  The great handling of the lens, the reasonable size and weight, nice bokeh, and tried and tested Canon L series build quality will make it an attractive pick for those of you who feel you need the wider aperture and don’t want a third party lens like the Tamron.  It comes at a cost premium over the other two, however, and that is a little hard to stomach when in many ways it lags behind the other two.  If you tend to shoot more event work and artistic shots where absolute sharpness and contrast is not a priority, this lens might be your pick.  I’ve seen a number of brilliant shots with it over the past eight years, but I feel that most consumers would be better served with either the Tamron or the Canon 16-35mm f/4L IS.  You can watch my review of it here:

The Canon EF 16-35mm f/4L IS is an exceptional lens and a huge leap forward for Canon in the wide angle zoom department.  It is as competent as any wide angle lens out there, and is the natural choice if you plan to only (or primarily) do landscape photography and don’t need the wider f/2.8 aperture.  Its slower maximum aperture is its greatest weakness, and it has a bit more vignetting, distortion, and coma that what I would like, but it also offers exceptional sharpness, contrast, virtually non-existent chromatic aberrations, and exceptional flare resistance.  My single greatest criticism remains:  I personally find it a bit bland.  But it is an exceptional lens.  It has the smallest front element, lowest weight, a great image stabilizer, while retaining a tough weathersealed body.  It really is the new benchmark and offers great value for the money.  If you need traditional filters and don’t do a lot of low light photography, the 16-35mm f/4L IS is a sure bet.

The Tamron SP 15-30mm f/2.8 Di VC USD is a very interesting proposition.  It seems aimed more at the Nikon 14-24mm f/2.8 G than any single Canon lenses, and direct head to head comparisons of those two lenses have been very interesting.  For Canon users the Tamron offers the best of both worlds but with two major caveats:  it is much bigger and heavier than the Canon zooms and does not allow for the use of traditional filters. If you want to shoot interiors, events, or the night sky along with landscape work this is now your best option.  It is super sharp wide open at all focal lengths and has a host of optical strengths, including sharpness and contrast, low vignetting, relatively low distortion, and great chromatic aberration and flare control.  It also offers the advantages of the wider aperture and focal length.  It has no real optical deficiencies and offers both weathersealing and special coatings on the front element to be resistant water and fingerprints.  It is now my personal choice for a wide angle option…not because it is better than the f/4L IS, but because it suits my shooting priorities more.  My next article for PhotoNews magazine will focus on the “trinity” of Tamron zooms for professional work.  I’ve received a number of emails from people that have purchased the Tamron 15-30 VC since my initial review and  all have been delighted with it.  You can see my video review of the lens here:

The Rokinon 14mm f/2.8 is really just along for the ride in some of these comparisons, but remains an amazing budget option both in terms of its optics and the incredible angle of view that it offers.  I wrote a review of it here.

This series has been very fulfilling as I feel that I have been able to “test these lenses to death” and be completely confident in my recommendations.  There were a few surprises along the way, but mostly my previous conclusions/suspicions have been confirmed.

If you haven’t seen them already, please check out:

Part 1: Specs, Build, and Objectives

Part 2: Resolution

Part 3: Angle of View, Distortion, and Bokeh

Part 5:  Gallery of Favorite Images from the Review

I hope that this series has been helpful to you as a consumer and perhaps helped you make a more informed decision.  If this is the case, please support my affiliate partners that provided these lenses and buy through these links.

Review notes: I want to give a shout-out to Tamron of Canada (Amplis Foto) for providing the copy of the Tamron for this comparison and B&H Photo of New York for providing the 16-35mm f/4L IS and the 16-35mm f/2.8L II for this comparison. The copy of the Rokinon 14mm f/2.8 that I use for comparison was purchased from the great people at Amplis Foto a few years ago. Reward these companies that provide the answers to your questions by shopping there…and reward my work on your behalf by using these links to shop through.

Gear Used:

Canon EOS 6D DSLR Camera (Body Only)
Tamron SP 15-30mm f/2.8 Di VC USD Lens (Canon EF)
Canon EF 16-35mm f/2.8L II USM Lens
Canon EF 16-35mm f/4L IS USM Lens
Rokinon 14mm f/2.8 ID ED UMC for Canon
Adobe Photoshop Lightroom 5 Software for Mac and Windows (Boxed Version)
Adobe Photoshop Creative Cloud 1-Year Subscription
Alien Skin Exposure 7 (Use code “dustinabbott” to get 10% off)

Purchasing your gear through B&H and these links helps fund this website and keeps the articles coming. Thank you for your support.

B&H Logo

Great News! I can now offer a 5% discount on all purchases at Amplis Foto, Canada’s Leading Photographic Supplier. Please enter discount code: AMPLIS52014 in your cart. It is good for everything in your cart, and is stackable with other coupons, too! It will take 5% off your entire order! Proceeds go towards keeping this site going and providing you with new reviews! Consider supporting Amplis Foto in Canada by buying the new Tamron 15-30 VC from them. They provide service in Canada for all Tamron products, and a great people to work with.

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DISCLAIMER: This article and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. As an Amazon Associate I earn from qualifying purchases.

Three Way Shootout Image Favorites

Dustin Abbott

April 27th, 2015

This is simply a gallery of images taken during the month of April 2015 when I compared three wide angle zooms head to head in a three way shootout.  These three lenses are the Canon EF 16-35mm f/2.8L IICanon EF 16-35mm f/4L IS , and the  Tamron SP 15-30mm f/2.8 Di VC USD.  I took a number of images during that period that I am proud to share. Some of these have received some post-processing, while others are just as they came out of the camera.  Enjoy!

If you haven’t seen them already, please check out:

Part 1: Specs, Build, and Objectives

Part 2: Resolution

Part 3: Angle of View, Distortion, and Bokeh

Part 4: Flare Resistance, Astraphotography, Handling, and Conclusions

Review notes: I want to give a shout-out to Tamron of Canada (Amplis Foto) for providing the copy of the Tamron for this comparison and B&H Photo of New York for providing the 16-35mm f/4L IS and the 16-35mm f/2.8L II for this comparison. The copy of the Rokinon 14mm f/2.8 that I use for comparison was purchased from the great people at Amplis Foto a few years ago. Reward these companies that provide the answers to your questions by shopping there…and reward my work on your behalf by using these links to shop through.

Gear Used:

Canon EOS 6D DSLR Camera (Body Only)
Tamron SP 15-30mm f/2.8 Di VC USD Lens (Canon EF)
Canon EF 16-35mm f/2.8L II USM Lens
Canon EF 16-35mm f/4L IS USM Lens
Rokinon 14mm f/2.8 ID ED UMC for Canon
Adobe Photoshop Lightroom 5 Software for Mac and Windows (Boxed Version)
Adobe Photoshop Creative Cloud 1-Year Subscription
Alien Skin Exposure 7 (Use code “dustinabbott” to get 10% off)

Purchasing your gear through B&H and these links helps fund this website and keeps the articles coming. Thank you for your support.

B&H Logo

Great News! I can now offer a 5% discount on all purchases at Amplis Foto, Canada’s Leading Photographic Supplier. Please enter discount code: AMPLIS52014 in your cart. It is good for everything in your cart, and is stackable with other coupons, too! It will take 5% off your entire order! Proceeds go towards keeping this site going and providing you with new reviews! Consider supporting Amplis Foto in Canada by buying the new Tamron 15-30 VC from them. They provide service in Canada for all Tamron products, and a great people to work with.

DISCLAIMER: This article and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. As an Amazon Associate I earn from qualifying purchases.

Three Way Shootout Part 3: Angle of View, Distortion, and Bokeh

Dustin Abbott

April 20th, 2015

Header 3

Our time with these three lenses has certainly demonstrated how far development has come in the past few years in the wide angle zoom department.  Our comparison of these three lenses has certainly favored the newer Canon EF 16-35mm f/4L IS along with the Tamron SP 15-30mm f/2.8 Di VC USD, but this week’s comparison series will further complicate matters a bit by demonstrating at least one area where the older Canon 16-35mm f/2.8L II beats out the newer competitors.  In this episode of our three way shootout we will be examining three aspects of these wide angle lenses:  angle of view, distortion, and bokeh.

Angle of View

The first two points of comparison are somewhat related, as the angle of view is only one part of the equation.  A lens can have a wide angle of view on paper but that angle of view can be less than useful if there is a tremendous amount of distortion, particularly that distortion that corrupts image quality along the edges of the frame.  I would suggest watching the first two minutes of the video below to see an interactive look at the comparative angle of view for our lens candidates.

Our results show that the Rokinon 14mm f/2.8 blows other lenses away in terms of absolute angle of view.  Every millimeter on the wide end makes a huge difference in the angle of view. The Rokinon’s 14mm focal length produces a field of view of 115.7 degrees (WOW!), while the Tamron’s 15mm produces a field of view of a slightly more modest 110 degrees. The Canon 16-35 frames at about 108 degrees while the Nikkor 14-24 actually frames at 114 degrees (as done Canon’s own 14L lens). Just for kicks: the Zeiss 15mm also frames at 110 degrees just like the Tamron, so the exception to the rule here is the Rokinon, which frames noticeably wider than all other options.  But this comparison also shows that there is more at play here than the numbers.

I recognize that for most prospective buyers, this comparison is really about the Tamron 15-30 VC vs. the Canon 16-35mm f/4L IS – so let’s first look at side by side comparisons of the angle of view of these lens at close distance (about 3 1/2 feet from a bookshelf), in a tight architectural space (a bathroom), and then at landscape distance.

The difference in angle of view is relatively modest, but noticeable in every setting.  My feeling is that matters less for most landscape photographers (stepping back an additional 5-10 feet is often possible), but will make more of a difference to those of you who are considering shooting interiors or events.

Here is a series from each of the four lenses in this setting:

Canon 16-35mm f/4L IS USM

Canon 16-35mm f/2.8L II

Tamron SP 15-30mm f/2.8 VC USD

Rokinon 14mm f/2.8

The Rokinon has a massive angle of view, but has an equally massive amount of distortion that means that it will not be a natural choice for most people that are looking to do architectural or interior work.  As a manual focus only lens (with a very imprecise focus ring)  the number of people that will want to use it for event work is negligible.  It is a great budget landscape and astraphotography lens, but isn’t a serious part of our considerations.

It is interesting to note that the two Canons do not frame identically at close distance (although they frame almost identically near infinity).  The older f/2.8L II frames a bit wider than the new f/4L IS, but it is only a minute difference.

The Tamron’s advantage on paper seems relatively small (2 degrees), but we see that this makes a noticeable difference in framing both in tight spaces and in the field.  Of perhaps greater significance is that it achieves this while producing a very modest amount of distortion (the lowest of our trio).  As we will see in our next segment, the combination of these elements further extends its advantage in this area.

Of our three contenders, the Tamron wins the angle of view war on the wide end by a fair margin.  Some have suggested that it isn’t as wide as the focal length suggests, but my tests show that it is clearly wider by an appropriate margin than either of the Canons.  The Rokinon is an anomaly; it frames wider than other 14mm lenses both on paper and in practice.

There is one other point to consider, however, and that is the Tamron sacrifices 5mm on the other end (30 vs. 35mm).  This produces a slightly lower maximum magnification figure than the other two lenses.  Every photographer has their own purpose in mind for using these lenses, so you need to consider what is more important to you – more on the wide end or more on the telephoto end.  I own both a 24-70mm f/2.8 zoom and a 35mm prime, so I personally prefer the wider focal length of the Tamron – it adds something that my other lenses aren’t replicating.

Distortion

We have already noted that the Rokinon represents the extreme end of the spectrum when it comes to distortion.  It’s distortion is the most difficult to correct for.  None of our three main contestants have a particularly difficult distortion pattern to correct for, but they all exhibit some barrel distortion (as is extremely common with wide angle lenses).  I read this evening with interest that LensTip reported a higher degree of distortion for the Tamron than the f/4L IS, which does not reconcile with my findings at all.  Photozone’s test show just slightly more distortion for the f/4L than the older f/2.8L (they have not tested the Tamron yet).  There is variation in these sites in their reporting on the older lenses, which surprised me.  That being said, I must work with the evidence in front of me, and my tests show the Tamron exhibiting much less barrel distortion in real usage…and that seems to reconcile with what the profiles created by Adobe show.

Start watching at the 1:55 minute mark for the section on distortion.  It is easier to visualize these differences in the interactive format shown in the video.

If you look at these before/after photos you will see that there is certainly more barrel distortion that needs correcting with both of the Canon options than what is apparent with the Tamron.

Canon EF 16-35mm f/4L IS

Tamron SP 15-30mm f/2.8 Di VC USD

Canon EF 16-35mm f/2.8L II and Rokinon 14mm f/2.8

In fact, even though a profile in ACR (Adobe Camera Raw) for the Tamron now exists and will certainly be in the next build of Lightroom (rumored to be announced this week), I find that it makes so little (apparent) correction to the image that I wonder whether it is worth using it. I have taken multiple images into Photoshop, applied the correction, and then decided that I prefer the original and remove the correction.  I certainly am not doing that with the images from the Canon 16-35mm f/4L IS.  This is not to suggest that distortion from that lens is particularly bad (it is not) but the nature of the distortion is that it is apparent to my eye.  I don’t see a lot of distortion in the images from Tamron and feel that the profile lops off some of the image without a whole lot to show for it.  There’s too much give and not enough take.

I’ve given you visual evidence to judge for yourself, but my own conclusion is that the Tamron exhibits less barrel distortion on the wide end than either of the Canon options.  I can’t really give you an answer as to why other sites report otherwise, but I will say this:  I have noted that sometimes third party lenses sometimes receive more criticism than first party options.  I also have the advantage in this situation of comparing these lenses side by side rather than in a vacuum. Head to head comparisons sometimes reveal surprising things, as does field testing as compared to just shooting charts.

Bokeh

I recognize that bokeh is probably not a top priority for many people in a wide angle lens (this is hardly a strength for them), but I have been pleasantly surprised with a number of wide angle options.  Furthermore, this type of lens (particularly the f/2.8 variant) is not only used by landscape photographers but frequently by event and wedding photographers, and there are certainly occasions that getting close to the subject and throwing the background out of focus can create unique and beautiful images.  (If you would like to understand the concept and purpose of bokeh more, visit this excellent article by PHLEARN).

Start watching at the 4:50 minute mark for the section on bokeh:

Let’s first take these lenses one at a time, starting with the Canon 16-35mm f/4L IS:

The Canon is at a disadvantage in bokeh situations because it has an aperture that is only half the size of the two f/2.8 variations.  Despite that, however, a nice maximum magnification figure (.23x – the highest of the trio) means that there are situations where it can produce some bokeh highlights despite its f/4 maximum aperture.  This will happen when you get close to your subject and have a little separation from the background.  When shot in identical situations to the other lenses the f/4L IS does produce “busier” backgrounds due to the smaller aperture.  It can’t overcome physics.  There are two knocks on the “Christmas light” highlight performance:  1)  There is a definitely a hard line around the inside outer edge of the bokeh circles that draws the eyes and 2) the bokeh highlights become somewhat “lemon” shaped towards the edge of the frame in a way the other two lenses don’t.  Not quite “cat eye”, but definitely not round, either.  The wide end bokeh gets more busy and less attractive, but don’t expect anything impressive from any of these lenses at 15/16mm when it comes to bokeh highlights.  Physics, and all that…

Next, let’s take a look at the Tamron 15-30 VC:

The Tamron benefits from having a large f/2.8 aperture, but suffers a bit in this type of test due to have a shorter maximum focal length compared to the other two (30mm vs. 35mm) and a resulting lower maximum magnification (.20x).  This diminishes its advantage somewhat in the size and softness of the bokeh highlights as compared to the f/4L IS.  That advantage would be a bit more pronounced were the framing identical.  The performance here reminds me a bit of the Tamron 24-70 VC – the highlights are a bit…busy.  There are some inner concentric lines that are often referred to as “onion bokeh”.  It doesn’t have the hard edge of the f/4L IS, but it produces the busiest bokeh highlights of the three and also will display a random “dot” here and there in the bokeh.  This performance actually surprised me, as I felt in field use (much like the 24-70 VC) that the bokeh was quite nice, particularly in the transition zone between focus and defocus.  The wide end bokeh remains busy, but is a bit softer than that of the f/4L IS because of the larger aperture.

I’ve saved the best for last.  We will now look at the Canon 16-35mm f/2.8L II:

The Canon has long been a staple of event and wedding photographers, and while it suffers in comparison to the other lenses when it comes to absolute sharpness and corner performance, it is a real winner in this kind of situation.  Its maximum magnification is only a fraction lower than the f/4L IS (.22x).  More importantly, the bokeh is shockingly beautiful for such a lens at 35mm, with big, soft bokeh highlights that completely lack any hard edges or visual noise inside.  They stay beautifully round right up the edge of the frame.  It puts the other two lenses to shame with this performance.  The lens sacrifices some sharpness and contrast to the other lenses, but much like, say, a Zeiss Planar T* 1.4/50mm it makes up for it with nice drawing and rendering of out of focus areas.  This is a great performance!  The wide end isn’t as visually impressive for a number of reasons, but is still the best performance of the three.

Field Use:

The test above is a very specific and unique one that is rarely duplicated in field use.  I have encountered issues with the onion bokeh issue on the Tamron 24-70 VC less than a handful of times despite taking well over 10,000 shots with it in a huge variety of circumstances and taking it to multiple countries.  It is a factor to consider, yes, but hardly the most important one.

Field use tells me that all of these lenses will produce nice results near minimum focus.  They all have useful maximum magnification figures and are nice performers in the field.  Still, this is one area where the older Canon gets the win.  Here are some field results in the same order as above:  f/4L IS, 15-30 VC, and f/2.8L II.  Some shots will give you a direct field comparison between two of the lenses.  There are fewer samples from the f/2.8L II because I concentrated more on comparing the two main players here.  Hovering over the thumbnails will tell which of the lenses is in use.

Conclusions

All three of these lenses have strengths and weakness.  The Tamron SP 15-30mm f/2.8 Di VC USD pulled off a win when it comes to the angle of view (expected) and distortion (unexpected).  The Canon EF 16-35mm f/2.8L II  turned in a shockingly good performance in our bokeh comparison.  The Canon EF 16-35mm f/4L IS had no outright wins in this week’s comparison, but has already demonstrated that it is an exceptional all around performer that really lacks any kind of glaring weakness (f/4 aperture aside).  The Rokinon 14mm f/2.8 is really just along for the ride in some of these comparisons, but remains an amazing budget option both in terms of its optics and the incredible angle of view that it offers.  Expect a strong performance from it in our astraphotography comparison next week.  If you haven’t seen them already, please check out:

Part 1:  Specs, Build, and Objectives

Part 2:  Resolution

Part 3: Angle of View, Distortion, and Bokeh

Part 4:  Flare Resistance, Astraphotography, Handling, and Conclusions

Part 5:  Gallery of Favorite Images from the Review

Next week will bring this series to its conclusion, as we will compare a variety of other aspects of these lenses’ performance, including flare resistance, coma and astraphotography, handling (including handholding), and the final conclusions on each of these lenses.  You will definitely want to check it out!

Review notes I want to give a shout-out to Tamron of Canada (Amplis Foto) for providing the copy of the Tamron for this comparison and B&H Photo of New York for providing the 16-35mm f/4L IS and the 16-35mm f/2.8L II for this comparison.  The copy of the Rokinon 14mm f/2.8 that I use for comparison was purchased from the great people at Amplis Foto a few years ago.  Reward these companies that provide the answers to your questions by shopping there…and reward my work on your behalf by using these links to shop through.

Gear Used:

Canon EOS 6D DSLR Camera (Body Only)
Tamron SP 15-30mm f/2.8 Di VC USD Lens (Canon EF)
Canon EF 16-35mm f/2.8L II USM Lens
Canon EF 16-35mm f/4L IS USM Lens
Rokinon 14mm f/2.8 ID ED UMC for Canon
Adobe Photoshop Lightroom 5 Software for Mac and Windows (Boxed Version)
Adobe Photoshop Creative Cloud 1-Year Subscription
Alien Skin Exposure 7 (Use code “dustinabbott” to get 10% off)

Purchasing your gear through B&H and these links helps fund this website and keeps the articles coming. Thank you for your support.

B&H Logo

Great News! I can now offer a 5% discount on all purchases at Amplis Foto, Canada’s Leading Photographic Supplier. Please enter discount code: AMPLIS52014 in your cart. It is good for everything in your cart, and is stackable with other coupons, too! It will take 5% off your entire order! Proceeds go towards keeping this site going and providing you with new reviews! Consider supporting Amplis Foto in Canada by buying the new Tamron 15-30 VC from them. They provide service in Canada for all Tamron products, and a great people to work with.

DISCLAIMER: This article and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. As an Amazon Associate I earn from qualifying purchases.

Three Way Shootout Part 2: Resolution

Dustin Abbott

April 13th, 2015

Red vs. TungstenThis article will seek to examine what is probably the single biggest burning question for us all:  can the Tamron SP 15-30mm f/2.8 Di VC USD live up to the superlative standard for sharpness (particularly in the corners) set by the Canon EF 16-35mm f/4L IS?  I first want to give a shout-out to Tamron of Canada (Amplis Foto) for providing the copy of the Tamron for this comparison and B&H Photo of New York for providing the 16-35mm f/4L IS and the 16-35mm f/2.8L II for this comparison.  The copy of the Rokinon 14mm f/2.8 that I use for comparison was purchased from the great people at Amplis Foto a few years ago.  Reward these companies that provide the answers to your questions by shopping there.  Back to the question of whether or nor the Tamron can optically compare to the Canon…

Before answering that question, let me first say this:  There is only one loser in this comparison, and that is the Canon EF 16-35mm f/2.8L II. It tells its age in many ways, including very poor performance in the corners, noticeably inferior contrast (even stopped down), poorer flare resistance, and much more chromatic aberrations (both green and purple fringing).  One thing that I have learned as a reviewer and one who actually does photography with a huge variety of lenses is that field use is kinder to many lenses than chart testing.  Some lenses don’t chart very well, but compensate by producing good pictures when actually used.  Some of you may own the EF 16-35mm f/2.8L II and probably have produced some stunning photos with it.  I have certainly seen a number of amazing images from it.  If you own it and like it, then just go on enjoying it; the existence of these other lenses doesn’t make yours worse!  I have had to the same thing with my EF 135mm f/2L despite its optical performance being passed by both the Zeiss APO Sonnar T* 2/135mm and the Samyang 135mm f/2 ED UMC.  But when this lens has to go head to head with the new Canon or the new Tamron, it comes away looking pretty bad by comparison (with a few notable exceptions that will show up in the next articles).  When I took it and f/4L IS out I could definitely tell a difference between the images.  The difference was immediately noticeable when comparing images, as both the sharpness and contrast differences (along with chromatic aberrations) were quickly apparent.

Not so with the Tamron and the f/4L. These are both amazing optical instruments. There is a bit of give and take:

  • The Canon has better chromatic aberration control (almost none). The Tamron has very little, but more than the Canon.
  • The Tamron is much better in the vignetting department, with noticeably less shading in the corners. That difference is even more apparent when it is stopped down to f/4.
  • The Canon is marginally sharper in the extreme corners, with the advantage virtually gone by the time the Tamron is stopped down to f/4.
  • The Tamron produces slightly more micro-contrast.
  • The Tamron (obviously) produces a more blurred background at or close to minimum focus.
  • The Tamron (surprisingly) has less distortion.

Most of these differences, however, are only distinguishable by comparing images taken in controlled environments side by side.  In fact, it is very hard to distinguish images taken by these lenses from each other except if they are shot with narrow depth of field (the f/4 backgrounds are a little busier due to the smaller aperture). The color rendition is quite similar. There were a few situations where the Canon had some motion blur because it would drop to a lower shutter speed due to the slower maximum aperture, but under normal circumstances I would just raise the ISO to compensate. This is really only an issue if you are a low light situation where that isn’t an option.

In subsequent articles we will look closer at:

  1. Angle of view
  2. Distortion
  3. Coma and shooting the stars
  4. Bokeh
  5. Flare Resistance
  6. Handling

This article is going to take a closer look at resolution, however.  The best way to visualize this comparison is by watching the video below where I go through the process of acquiring the images and then interactively look at the results.  I think you will find this very interesting:

None of these images have received any processing or correction.  I shot them as RAW images so that there would be no in camera processing.  There is not additional sharpness, chromatic aberration correction, distortion correction, or vignette correction.  As you can see, the optical difference between our two top competitors is marginal.  Both the Tamron and the Canon f/4L IS offer extremely impressive resolution.  If you would prefer to do this comparison yourself, here are the full size images of the Tamron at f/4 (top) and the Canon EF 16-35mm f/4L IS at f/4 on the bottom – if you will click through you can go to a page with the full size images that you can zoom into at any point.  One thing to note:  the focus point was the poles in the center of the image, which means that at this aperture the bottom corners (and bottom quarter of the image) are not yet in focus, so don’t draw any conclusions on any of the lenses from that.

Tamron f-4Canon f-4

Here are the pertinent crop comparisons.  In this series, the Tamron is on the left (as marked) and the Canon is on the right.  Other than the heavier vignetting of the Canon and a minute amount of additional fringing on the Tamron, making a visual distinction between the lenses is difficult.  I do think the extreme left still slightly favors the Canon, but every other portion of the image is a draw.

As a final comparison, here is the f/4 image from the older Canon EF 16-35mm f/2.8L II:

Canon II f-4You can quickly see that the newer lenses outresolve the older f/2.8L lens in a dramatic way.  That is particularly true in the corners, but is true throughout the frame as well.  The older lens also demonstrates far more chromatic aberrations and reduced contrast.  If you want to look further, I am including 1500px copies from the Tamron at 15mm, 20mm, and 30mm in f/2.8, f/4, f/5.6, f/8, and f/11.

This second series will share similar images from the Canon EF 16-35mm f/4L IS (f/2.8 results won’t appear for obvious reasons):  16mm, 20mm, and 31mm in f/4, f/5.6, f/8, and f/11.

The third series shares the images from the Canon EF 16-35mm f/2.8L II:  16mm, 21mm, and 31mm in f/2.8, f/4, f/5.6, f/8, and f/11.

Our final series is from the Rokinon 14mm f/2.8.  These images (for obvious reasons) are only at 14mm:  f/2.8, f/4, f/5.6, f/8, and f/11

It may be harder to visualize the differences in these images, so let me summarize my findings: at 15/16mm for the Canon f/4L and Tamron further stopping down is just about either getting a slightly deeper depth of field or because you want a slower shutter speed:  they are both essentially perfect sharp at f/5.6 and sharpness doesn’t change at f/8 or f/11.  f/5.6 is probably a great aperture to choose for landscape work, as it represent something close to peak sharpness across the frame.

As for the Rokinon, it suffers in this comparison for a few reasons.  The incredibly heavy vignetting really detracts from the image quality here, but note that this is very easy to correct for in post.  The Rokinon also suffers because of its fairly extreme distortion that stretches the edges of the image and gives the appearance of softness.  Towards the center of the image it is fairly equal to the other competitors, but is definitely the worst in the extreme corners.  Stopped down and corrected it continues to offer great image quality at its bargain price point, but it is not at the level of our top two performers.

At 20mm most of the previous observations remained true, although the Tamron looked better in the corners than the Canon f/4L while the Canon looked better in the center (essentially reversed, which could be a focus variation).  When stopped down to f/5.6 and beyond the images were indistinguishable from each other.  The older Canon continued to lag behind the other two lenses in an equally obvious way.  Test say that the Tamron is actually the sharpest option available in the 21-24mm range.

A 30mm the older Canon seems to fall behind even further.  It is quite soft wide open even towards the middle of the frame when compared to the other two.  The Tamron is now basically equal to the Canon f/4L even wide open at f/2.8.  Both of these lenses are producing a nearly flawless result, however, with great resolution across the frame and excellent contrast.

(Believe it or not, there are a couple of places in later discussions where the older Canon f/2.8 II is a winner, but resolution and overall image quality is not one of them.)

Put simply, while I do feel that there is a very marginal advantage at wider apertures for the Canon EF 16-35mm f/4L IS (at least at 16mm), you can take resolution off the table as a means of making your decision between the new Tamron 15-30 VC and the Canon 16-35mm f/4L IS.  In subsequent articles were will compare the differences in other areas that might help you make that decision one way or another, but I don’t think that you can declare a clear winner between these two new wide angle zooms when it comes to resolution…unless you need an f/2.8 aperture.  The Tamron is the far and away winner of our four contestants in resolution at f/2.8 (though the f/4L concedes this by default).  In practical use for most subjects, however, it would be hard to distinguish the images from one lens to the other.  The only exception to this rule is close focus shots at maximum aperture.  The f/2.8 aperture is going to produce more defused backgrounds, but this also represents a fairly marginal use of these types of lenses.  This series of images demonstrates how similar in practice these lenses really are.

If you were unable to tell the difference, here’s the clue:  Canon images are first in the sequence, Tamron images are second.  Most of the Tamron images are at f/2.8 (other than some of the landscape shots), while the similar shots from the Canon are at f/4, of course.  I think you will probably agree that in real world use, you aren’t going to be tell a resolution difference between these lenses.  They are just going to produce great looking, sharp images…period.  If you can’t produce sharp results with either of these lenses, then I’m afraid you can’t blame the glass.  These lenses offer the pinnacle of image quality in wide angle zooms.  The shootout will continue, but between our main competitors you will probably have to call this one a draw.

If you want to read the other sections, take a look here:

Part 1:  Specs, Build, and Objectives

Part 2:  Resolution

Part 3: Angle of View, Distortion, and Bokeh

Part 4:  Flare Resistance, Astraphotography, Handling, and Conclusions

Part 5:  Gallery of Favorite Images from the Review

 

Gear Used:

Canon EOS 6D DSLR Camera (Body Only)
Tamron SP 15-30mm f/2.8 Di VC USD Lens (Canon EF)
Canon EF 16-35mm f/2.8L II USM Lens
Canon EF 16-35mm f/4L IS USM Lens
Rokinon 14mm f/2.8 ID ED UMC for Canon
Adobe Photoshop Lightroom 5 Software for Mac and Windows (Boxed Version)
Adobe Photoshop Creative Cloud 1-Year Subscription
Alien Skin Exposure 7 (Use code “dustinabbott” to get 10% off)

Purchasing your gear through B&H and these links helps fund this website and keeps the articles coming. Thank you for your support.

B&H Logo

Great News! I can now offer a 5% discount on all purchases at Amplis Foto, Canada’s Leading Photographic Supplier. Please enter discount code: AMPLIS52014 in your cart. It is good for everything in your cart, and is stackable with other coupons, too! It will take 5% off your entire order! Proceeds go towards keeping this site going and providing you with new reviews! Consider supporting Amplis Foto in Canada by buying the new Tamron 15-30 VC from them. They provide service in Canada for all Tamron products, and a great people to work with.

DISCLAIMER: This article and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. As an Amazon Associate I earn from qualifying purchases.

Three Way Shootout Part 1: the Lenses

Dustin Abbott

April 9th, 2015

Header 1

When I did my review of the Tamron 15-30mm VC last month, I did it without the benefit of having its direct competition (at least in a Canon mount) on hand. The review period was quick because of the demand for review pre-release copies and so I didn’t have a chance to get the competitors on hand. I had to rely on my memory of those lenses and the gut impressions I got from using them. Subsequent reviews by other review sites have largely confirmed those impressions. I felt strongly enough about the Tamron that I put my own preorder in. My one regret, however, was that I didn’t get a chance to directly compare the 16-35mm f/4L IS with the Tamron. When Tamron of Canada mentioned that I could get some more time with the 15-30 VC I immediately reached out to my buddies at B&H Photo to provide me a comparison copy of the 16-35mm f/4L, and just for the fun of it, to throw the older 16-35mm f/2.8L II into the mix as well. They were very obliging, and so I owe a debt of gratitude to both them and Tamron of Canada (Amplis Foto) for enabling this bit of “fanboy fantasy”. A lot of you have requested this comparison, so you thank these great companies for making it happen!

As I mentioned, there have been a number of reviews that have come to light since I launched mine in mid-February. Those reviews have for the most part affirmed the various conclusions that I came to myself. However, in one case, the chart testing at The Digital Picture by Bryan Carnathan (a reviewer that I have a lot of personal respect for) seemed to indicate that the Tamron was not a sharp as what I found to be, or at least as compared to the Canon EF 16-35mm f/4L IS. While I did directly compare the Tamron 15-30 to two lenses from my own kit: the Tamron 24-70 f/2.8 VC (which by the way, has since been serviced by the fine people at Tamron Canada and is sharper than ever!) and the Rokinon 14mm f/2.8, I regretted not being to compare it to its natural competition.

Threesome-2

I decided that I would do my own direct comparison of these three lenses, but I will stick to my strengths here. This will not be a chart comparison, but rather a real world photography comparison but doing my utmost to deliver those results in as accurate, controlled, and unbiased way as possible. I appreciate those that do chart testing, and always enjoy looking at those results and using them as a part of my own purchase decisions. I recognize that it is easier to be scientific with chart testing. But much like testing a camera without a lens attached (hello, DXO) I don’t find that they always tell the full story. In real life no photographer shoots charts; we shoot real-world subjects…with lenses attached! I personally find results that imitate the way I will actually use a lens to be more personally beneficial.

On top of that I want to do my best to help those of you that are weighing which of the fine options to choose for your own kit. I will do my absolute best to highlight the strengths and weaknesses of each lens along with some visual evidence to back those conclusions up. I don’t work for any of these companies, nor do I own stock in them. I’m not trying to sell you anything. If anything, I am just thankful that after a long period of having no great option available in the wide angle zoom department, Canon shooters suddenly have a wealth of choices.

But what about the new EF 11-24mm f/4L? I do plan to review that lens at some point, but I don’t feel like it is really a natural competitor to any of these lenses. It costs nearly three times as much as the Tamron and the 16-35 f/4L IS and almost twice as much as the 16-35mm f/2.8L. While there is some focal length overlap, it is a far more extreme instrument, and, frankly, there are only a limited number of photographers that actually need the extreme focal length provided by the 11-24mm f/4L. These three lenses, however, are very natural competitors.

Natural Competitors

Part One Header

The Tamron is uniquely situated to compete with both of these Canon options, as it has the wider aperture of the former combined with the image stabilizer of the latter. At the same time it is a unique lens, so the feature set of the lens ends up being a combo of these two lenses rather just one of them. Part of what I will be doing is comparing the feature set of each lens to help you make a more informed decision if you are in the market. Unfortunately there is no lens here that has it all; as always, there is some give and take.

The 16-35 f/2.8L has a wide aperture that lets in twice the light as the f/4 lens and retains the ability to use traditional filters, but it lacks an image stabilizer and has the weakest optics by a good margin.

The 16-35mm f/4L IS has amazing optics and an effective image stabilizer, and it too retains the ability to use traditional filters, but it has a slower aperture than the other two and is thus less appealing as an event/wedding lens where you need to stop action and need the wider aperture.

The Tamron 15-30 VC has the wide aperture, image stabilizer, and the great optics, but at the cost of being able to use traditional filters and considerably more size and weight.  It also sports a six year warranty in North America – kind of a big deal!

Both the Tamron 15-30 VC and Canon 16-35mm f/4L IS are released at very reasonable prices relative to their performance, and I noted with delight in my review of the Canon that it was proving the exception to the rule of Canon’s recent exorbitant initial pricing. It has held the price point of $1199 thus far, and other than the usual sales and rebates, I fully anticipate this continuing to be the market price. The same applies to the Tamron, which is being introduced at the same price point despite being an f/2.8 lens. Its price significant undercuts the Canon EF 16-35mm f/2.8L II ($1699) and the Nikon 14-24 f/2.8G ($1999). I fully anticipate Tamron stealing some market share from both of those lenses.

Here is the introductory video that will show you the difference in size and build and lay out the objectives for this comparison.

Here are a few of the questions that I would like to answer during this comparison:

  • Would my perceptions regarding what I found the more exciting lens bear up under direct comparison with the 16-35mm f/4L IS?
  • Is the 16-35mm f/4L IS as bad for astraphotography as what I remembered?
  • When compared directly, does one of these lenses have a clear resolution advantage in field use?
  • I noted the amazing contrast of the new Tamron 15-30. Will that still be the case when compared with the 16-35mm f/4L IS?
  • Is the added bulk and complication of not being able to use front filters a deal breaker with the Tamron 15-30 VC?
  • Is the added width of the Tamron on the long end going to make much of a difference?  Is the extra length on the Canons?

I’ve already begun a series of comparisons to answer these questions and more.  I’m discovering some interesting things, so stay tuned.  I will be breaking down strengths and weaknesses in a variety of fields for each lens, so keep watching for new articles and updates.  Take a look at each part of this comprehensive series.

Part 1:  Specs, Build, and Objectives

Part 2:  Resolution

Part 3: Angle of View, Distortion, and Bokeh

Part 4:  Flare Resistance, Astraphotography, Handling, and Conclusions

Part 5:  Gallery of Favorite Images from the Review

Gear Used:

Canon EOS 6D DSLR Camera (Body Only)
Tamron SP 15-30mm f/2.8 Di VC USD Lens (Canon EF)
Canon EF 16-35mm f/2.8L II USM Lens
Canon EF 16-35mm f/4L IS USM Lens
Adobe Photoshop Lightroom 5 Software for Mac and Windows (Boxed Version)
Adobe Photoshop Creative Cloud 1-Year Subscription
Alien Skin Exposure 7 (Use code “dustinabbott” to get 10% off)

Purchasing your gear through B&H and these links helps fund this website and keeps the articles coming. Thank you for your support.

B&H Logo

Great News! I can now offer a 5% discount on all purchases at Amplis Foto, Canada’s Leading Photographic Supplier. Please enter discount code: AMPLIS52014 in your cart. It is good for everything in your cart, and is stackable with other coupons, too! It will take 5% off your entire order! Proceeds go towards keeping this site going and providing you with new reviews! Consider supporting Amplis Foto in Canada by buying the new Tamron 15-30 VC from them.  They provide service in Canada for all Tamron products, and a great people to work with.

DISCLAIMER: This article and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. As an Amazon Associate I earn from qualifying purchases.

It Happened one Friday

Dustin Abbott

April 3rd, 2015

“It Happened One Friday”

© 2015 Thousand Word Images by Dustin Abbott

The moodiness of the sky in this long exposure shot I took yesterday brings to my another day when the sky turned dark and the earth was moody. We call this Friday “Good”, but that is only the case because of the Sunday that followed. Happy Easter weekend to all of my friends out in the photography world. Be blessed!

Technical Information: Canon EOS 6D, Canon EF 16-35mm f/2.8L II USM, Processed in Adobe Lightroom 5, Adobe Photoshop CC, Alien Skin Exposure 7 (use code “dustinabbott” to get a 10% discount)

Gear Used:

Canon EOS 6D DSLR Camera (Body Only)
Canon EF 16-35mm f/2.8L II USM Lens
Adobe Photoshop Lightroom 5 Software for Mac and Windows (Boxed Version)
Adobe Photoshop Creative Cloud 1-Year Subscription
Alien Skin Exposure 7 (Use code “dustinabbott” to get 10% off)

Purchasing your gear through B&H and these links helps fund this website and keeps the articles coming. Thank you for your support.

B&H Logo

Great News! I can now offer a 5% discount on all purchases at Amplis Foto, Canada’s Leading Photographic Supplier. Please enter discount code: AMPLIS52014 in your cart. It is good for everything in your cart, and is stackable with other coupons, too! It will take 5% off your entire order! Proceeds go towards keeping this site going and providing you with new reviews!

DISCLAIMER: This article and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. As an Amazon Associate I earn from qualifying purchases.