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Review: Tamron 70-180mm f/2.8 Di III VXD

Posted on July 23, 2020July 24, 2020 by Jordan Steele

Contents

  • 1Construction and Handling
  • 2Autofocus
  • 3Image Quality
  • 4Conclusion
  • 5Image Samples

Tamron has been in the lens business for a long time, having established itself as a major third-party player for SLR systems going back decades. Despite that pedigree, Tamron had barely dipped its toes in the waters of mirrorless for many years before finally jumping in to the Sony E mount system in earnest two years ago with the 28-75mm f/2.8. That lens was a hit, and Tamron has since added an f/2.8 ultra-wide zoom, three wide-angle macro primes and now this lens, which completes the f/2.8 zoom trinity: The Tamron 70-180mm f/2.8 Di III VXD.

Tamron’s philosophy with their f/2.8 zooms for Sony has been to create high quality optics while maintaining a compact, lightweight form factor. The 70-180mm f/2.8 continues this trend by packing an f/2.8 constant aperture in a lens no heavier than most f/4 telezooms. But can it perform?

The Tamron 70-180mm f/2.8 Di III VXD on the Sony A7R IV

Construction and Handling

The first thing you notice when you see the Tamron 70-180mm f/2.8 is that it is incredibly small for a full-frame f/2.8 telephoto zoom. Most 70-200mm f/2.8 lenses are fairly hefty and reasonably long lenses. The competing Sony 70-200mm f/2.8 GM is 7.9 inches long and weighs in at a weighty 1,480g. The one-stop slower 70-200mm f/4 G is 7 inches long and 840g. Meanwhile, the Tamron 70-180mm f/2.8 is only 5.9 inches long and just 810g. Creating an f/2.8 telezoom that is both lighter and smaller than the competition’s f/4 telezoom is a remarkable feat.

Having an f/2.8 telezoom that is half the weight of the competition is remarkable on paper, but in use it feels like even more of a savings. Because the lens is shorter in length, the weight distribution is also superior to most 70-200mm lenses, and as such, there is no fatigue when carrying this lens around for long periods of time while mounted to the camera.

The Tamron 70-180mm f/2.8 (right), compared to the Canon EF 70-200mm f/4L with MC-11 (left)

The biggest reason the Tamron 70-180mm manages to stay compact is that it features an extending zoom design, rather than the constant length internal zoom that most fast telezooms have adopted in the past 30 years. Canon has also decided to make their RF 70-200mm f/2.8 zoom an extending type to reduce size, and I think it’s a good design decision. The result is a lens that is remarkably compact. The lens fits easier in most camera bags, and the light weight makes handling a breeze.

The lens is built similarly to the other Tamron E-mount lenses, with a polycarbonate exterior, a metal mount, and weather sealing throughout for dust and moisture resistance. The plastic exterior does make the lens feel cheaper than most pro-grade telezooms, but the 70-180mm is assembled with tight tolerances, and the extending zoom shows no wobble or flex, even at full extension.

The Tamron 70-180mm f/2.8 with its included lens hood

The lens body is no-frills, with a wide rubber-gripped zoom ring at the end of the barrel, and a narrow manual focus ring towards the lens mount. Aside from that, the only other control on the lens is a zoom lock which can keep the lens collapsed to 70mm during transport or hiking. Both the zoom ring and focus ring turn smoothly and have relatively good damping. The lens comes with a plastic petal shaped lens hood that locks securely into place.

The 70-180mm f/2.8 keeps the same 67mm filter thread as all of the other Tamron FE-mount lenses, and as such, the same set of filters can be shared between an entire set of lenses…a very nice touch if you are building a kit with predominantly Tamron lenses.

Three Tamron f/2.8 zooms: 17-28mm, 28-75mm, 70-180mm

After using the lens for the past month, I have to say: I welcome the design decisions Tamron has made with the 70-180mm, and I would have a hard time going back to a 1400g 70-200mm f/2.8 lens. This lens fulfills the promise of a small, high quality kit that many had hoped for at the dawn of mirrorless.

Autofocus

The Tamron 70-180mm f/2.8 Di III VXD is equipped with Tamron’s new VXD focus motor. The VXD stands for Voice-coil eXtreme tourque Drive. It’s sort of a silly name, but the results are impressive. Many third party lenses struggle with autofocus speed, but this lens is an exceptionally quick focuser. When shooting in continuous AF in reasonably good light, it is among the very fastest focusing lenses I’ve ever used for any format. Focus is essentially instantaneous, moving from near to far as fast as you can half press the shutter button. In dimmer light, it slows down a little, but it is still extremely quick. Like many lenses on Sony E-mount, it isn’t quite as fast when using single-shot AF, but it still is on par with most any lens I’ve used for the system.

Accuracy for the most part has also been very good. When using the lens for portraits, the 70-180mm utilizes Sony’s EyeAF system to great effect and consistently nails the eyes. In continuous AF throughout the zoom range and focus range, I also experienced outstanding focus accuracy.

Running – Sony A7R IV with Tamron 70-180mm f/2.8 @ 180mm, f/2.8

In single-shot AF, though, accuracy was more mixed. In most situations, focus continues to be good in speed and quite accurate. However, the lens on my A7R IV has trouble obtaining accurate focus in single-shot AF on distant subjects near the long end of the zoom range. It’s especially prone to mis-focus in that situation at small apertures. Switching to continuous autofocus, or magnifying the image and using single-shot AF while magnified allows the lens to focus accurately.

I have been in contact with Tamron concerning this issue, and they are looking into it. This issue appears to be somewhat body dependent, as the lens has no issues in any focus mode when shooting with my a6400, and reports on this issue seem to be limited to the A7R IV and A7R III. Until a fix is available, when using the A7R IV, it’s easy enough to stick to continuous AF for general shooting, and magnify the image when focusing for landscape work on a tripod, where I’ve had no issues.

Image Stabilization

The Tamron 70-180mm f/2.8 saves some of its weight and cost by not having any optical image stabilization. As such, you’ll be limited to using Sony’s in-body IS system with the lens. I had good success with the IBIS on my A7R IV with the 70-180mm, allowing for sharp images regularly at around 1/40s at 180mm. It would be nice to have an optical stabilizer, but at this price point, I understand the omission.

Continue: Image Quality

Pages: 1 2 3

12 thoughts on “Review: Tamron 70-180mm f/2.8 Di III VXD”

  1. Matthewdum says:
    July 29, 2020 at 7:28 am

    [b][/b]

    Reply
  2. David Payne says:
    August 4, 2020 at 5:33 am

    I have recently purchased this lens and agree with your review. A very sharp lens and I love the size with the f2.8 aperture. I have also noticed the autofocus issues you mention when in single shot mode. I had the Sony 70-200 f4 G lens and find the Tamron superior in image quality and also focus accuracy. I am very happy with my purchase and now have the three Tamron 2.8 zooms.
    I very much like the quality of your reviews and find them to be reliable.

    Reply
  3. Martin says:
    September 9, 2020 at 7:18 pm

    I am very interested on this lens, and wonder if it can pair with Raynox 250 for some general macrophotography? Thanks

    Reply
  4. Sigmund says:
    September 29, 2020 at 3:17 pm

    Hey Jordan, anything happened to you?

    Reply
    1. Jordan Steele says:
      September 29, 2020 at 3:18 pm

      No, I’m good. Just been insanely busy with work and have had little time to write.

      Reply
  5. Richard Paul Handler says:
    December 17, 2020 at 2:01 am

    For several years I owned the Sony 4/70-200 G. Then I swapped for the Sony 100-400 GM. Both were fine instruments but impractical for travel and impossible for hiking and even walking about.

    I now own the Tamron and use it often. After the pandemic it will be in my travel kit. F2.8 is a boon, often.

    To facilitate adjusting CPL filters often I substitute a Sensei 67mm screw on collapsible rubber hood. I also use this on my Voigtlander 65mm Apo-Lanthar macro and my Zeiss Batis 40mm CF.

    Reply
  6. Harry says:
    January 7, 2021 at 2:06 am

    I am wondering about AF descriptions – Tamron 2.8/70-180 mm on Sony = extremely fast
    and Canon RF 2.8/70-200 mm on Canon = very fast
    I had used Tamron on Alpha 9 against Sony 2.8/70-200 mm GM – witch I rate only “fast” – but then I must rate the Tamron on Alpha 9 = slow! Especially in close focussing and find a subject when it searches from near to far.
    And the Canon is feeling a lot faster then both.
    Do you agree?

    Reply
    1. Jordan Steele says:
      January 7, 2021 at 9:59 am

      I can’t say I would ever describe the Tamron as focusing ‘slow’. Are you using single point AF or continuous, as I do notice that all Sony lenses focus slower in single point than in continuous, but the Tamron, especially in continuous mode, focuses essentially instantaneously for me on my A7R IV. If I’m shooting in dimmer light and going from very close up to very far, then yes, it slows down a fair bit, but that’s more to do with available light and the camera than the AF speed of the lens. In good light with strong contrast subjects, the Tamron is very fast, and for instances where you’re shooting at more moderate distances, it’s just essentially instant.

      The Canon does better in speed on the very close to far focus test, but I think that’s more to do with my R6’s better AF in lower light than anything. In good light, it’s quick, but not quite as quick as the Tamron. Both are certainly fast enough to keep up with any tracking duties, though.

      I have both lenses sitting on my desk right now and just tried all of these, and that’s what I see with them.

      Reply
      1. Harry says:
        January 8, 2021 at 7:07 am

        I do animal-photography most of the time – and have no millisecond to waste.
        Often the light is not perfect – so yes my experiences come from low light, fast action, low contrast at continous-AF – and then Tamron is not fast –
        Sony is faster and Canon is with RF 70-200 mm the fastest.
        And for me it is easy to see that Sony A9 and A7RIV works best and faster with Sony lenses – Tamron is braked out.
        So for normal still live, single AF, Tamron might be fast enough – but with the newest cameras from Sony, there is no real need for me to use single-AF or even one-shot.

        Reply
        1. Fotofrik says:
          February 5, 2021 at 3:53 pm

          Yes Tamron od 2.8/70-180 mm on May Sony = extremely fast!

          Reply
  7. Fotofrik says:
    February 5, 2021 at 3:54 pm

    Yes Tamron od 2.8/70-180 mm on May Sony very fast!

    Reply
  8. Scott Petty says:
    February 14, 2021 at 9:08 am

    Another great review – very helpful and the accompanying images are wonderful. Thanks, Jordan!

    Reply

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