TheCameraKitBuild my kit
Menu

Tamron lens for Sony and Nikon

Tamron 20-40mm F/2.8 Di III VXD

20–40 mm, f/2.8, made for full frame. It mounts natively on 12 of our APS-C cameras across 2 mounts; on the a6400 it frames like 30–60 mm.

  • 20–40 mm · 30–60 mm equiv. on a6400
  • f/2.8
  • 67 mm filter
  • 365 g (Sony) · 380 g (Nikon)
  • Weather-sealed
85.5 mm long74.4 mm67 mm filter thread
Drawn from Tamron's published size for the Sony E version: 74.4 × 85.5 mm, at its shortest. Details simplified.

Amazon links on this page are paid links: we earn from qualifying purchases at no cost to you. They never change which lenses fit or how a list is sorted. Disclosure

Sony E version on AmazonNikon Z version on Amazon

Try Amazon Prime free before you use the Amazon links on this page. It is a paid link too, like the Amazon links.

On your camera

The view, the weight with the camera (battery and card included) and what the maker says about each pair. Tamron makes this lens for each mount; Tamron publishes the cameras it supports and lens firmware updates on its own site. It is made for full-frame sensors and covers APS-C with room to spare.

Every camera in our catalogue this lens mounts on: 12
CameraView (35 mm equiv.)With the cameraFit and maker's notes
Sony a600030–60 mm709 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony a610030–60 mm761 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony a640030–60 mm768 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony a660030–60 mm868 gFits and works
Sony a670030–60 mm858 gFits and works
Sony ZV-E1030–60 mm708 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony ZV-E10 II30–60 mm742 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony FX3030–60 mm1,011 gFits and works
Nikon Z3030–60 mm785 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Nikon Z5030–60 mm830 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Nikon Z50II30–60 mm930 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Nikon Z fc30–60 mm825 gFits and works
Native mount: it fits and works.
  • Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.

What it frames

26 mm27 mm30 mm
Highlighted: this lens on the a6400. A zoom's dashed frame is its longest view.

At its closest (17 cm from the sensor) it fills the frame of the a6400 with a subject about 9 cm wide.

On the a6400, to scale

Side view drawn from the published depth of the camera and length of the lens. 768 g together.

Every lens with a 67 mm thread

Other everyday and travel zooms for Sony E

The nearest in focal length, with the numbers that differ.

Questions about this lens

Which cameras does the Tamron 20-40mm F/2.8 Di III VXD fit?

12 APS-C cameras in our catalogue: a6000, a6100, a6400, a6600, a6700, ZV-E10, ZV-E10 II, FX30, Z30, Z50, Z50II, Z fc. It is made for full frame, so it also fits the full-frame cameras on its mount.

What does it frame like on APS-C?

20–40 mm frames like 30–60 mm on the a6400 (1.5x).

What filter size does it take?

67 mm screw-in filters. Every lens with a 67 mm thread.

Where these facts come from

Facts checked 9 Oct 2026 against the makers' specification pages. How we check

Size, weight, filter thread, close focus and magnification are Tamron's published figures; weight and length differ slightly between mount versions. We have not tested this lens; for image quality, read reviews from people who have.

Specifications

Mount
Sony E
Made for
Full-frame sensors (covers APS-C too)
Focal length
20–40 mm
Maximum aperture
f/2.8
Lens stabilisation
No
Weather sealing
Yes, per the maker
Filter thread
67 mm
Weight
365 g
Size (diameter × length)
74.4 × 85.5 mm
Closest focus
17 cm
Maximum magnification
0.26x
Autofocus
Yes
Announced
2022

Per mount: Sony E 365 g, 85.5 mm long; Nikon Z 380 g, 88.7 mm long.