Tamron 20-40mm f/2.8: Small but mighty

Tamron 20-40mm f/2.8: Small but mighty

At first look, the Tamron 20-40mm f/2.8 seems a bit odd. It is not an ultra-wide lens, however it’s not a normal zoom lens both. Type of by the way in which. Subsequent time you go on a photograph stroll, do you have to take this as a substitute of the Tamron 28-75mm f/2.8 or 17-28mm f/2.8? Let’s take a look.


  • Mild
  • Transportable
  • Sharp
  • nice colours
  • Worth
  • Hermetic


  • growing older
  • No guide focus change

Tamron 20-40mm f/2.8 — Technical specs

All specs for the Tamron 20-40mm are taken from: B&H website:

  • Minimal focus distance: 6.7” / 17mm
  • Most magnification: 0.26x
  • Macro copy ratio: 1:3.8
  • Focus sort: Auto
  • Picture stabilization: No
  • Filter dimension: 67 mm (entrance)
  • Weight: 12.9 ounces / 365g

Tamron 20-40mm f/2.8 — Ergonomics and construct high quality

Tamron 20-40mm Lens
Tamron 20-40mm Lens

Just like most Tamron lenses, the 20-40mm f/2.8 has modest however good construct high quality. It has a plastic physique with a metallic mount and a strong climate seal. The lens may be very mild however feels premium in hand.

The Tamron 20-40mm has a pleasant short-throw zoom ring. The main target ring is situated in entrance of the lens. It feels clean and turns simply.

One factor that’s noticeably lacking from the Tamron 20-40mm is an AF/MF change. I do not use this button typically, however there have been occasions after I used the lens and wished I had it.

It ought to be famous you could nonetheless use guide focus with the lens, merely choose it out of your digicam menu as a substitute of the lens physique.

Tamron 20-40mm f/2.8 — Within the subject

The Tamron 20-40mm f/2.8 stunned me. At first, I wasn’t positive what to make use of it for as a result of the 20-40mm vary appeared like a bizarre focal vary to me. My spouse and I went on trip to Dallas, Texas, so I believed why not take the Tamron 20-40mm f/2.8 with me and see the way it works as a journey companion.

To that finish, the Tamron 20-40mm undoubtedly shined. Paired with my Sony A7iv so evenly and compactly, I can take this mixture with me wherever with nice outcomes. The lens was enjoyable to make use of and I discovered that I actually loved utilizing it.

Tamron 20-40mm f/2.8 — Autofocus efficiency

Throughout my assessments, the Tamron 20-40mm f/2.8 carried out nicely. Quick and correct. The motors are quiet and I may see this being lens for gimbal operation.

I’ve had just a few occasions when utilizing steady autofocus the place the main target does not pull after I zoom out. It did not occur each time, however there have been just a few cases. I am positive this may be mounted with settings or probably a future software program replace.

Tamron 20-40mm f/2.8 — Picture high quality

Picture high quality is nice with the Tamron 20-40mm. The pictures are very sharp and delightful.

Distortion management and vignetting

As you would possibly anticipate from a wider zoom lens, there may be some distortion and dimming. It is fairly managed on the huge finish however could be a bit heavier on the lengthy finish.

There’s fairly a little bit of pinning concerned, however it’s very manageable and simply mounted within the post-editing course of.

ghosting and glow

Throughout my use of the Tamron 20-40mm, I didn’t expertise a lot ghosting or flare. I used to be capturing principally in the midst of the day and it gave an important efficiency.


I discovered the pictures taken with the Tamron 20-40mm f/2.8 to be very sharp. I would not thoughts counting on this lens.


With the Tamron 20-40mm, the bokeh is sweet with an honest drop. Bokeh balls are properly rounded, even huge open at f/2.8

coloration rendition

I discovered the colour rendition on this lens superb. I took the Tamron 20-40mm to an artwork museum whereas exploring Dallas and was very happy with the outcomes. The pictures beneath have been corrected for vignetting, however not in any other case edited so you’ll be able to see the outcomes.

Artist — Obey Large at Dallas Modern

#Tamron #2040mm #f28 #Small #mighty

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