Tamron 20-40mm F/2.8 Di III VXD Overview


Introduction

Launched in September 2022, the Tamron 20-40mm F/2.8 Di III VXD is a quick ultra-wide-angle to plain zoom lens with a continuing F2.8 aperture all through the focal vary.

This Tamron lens is designed for Sony’s vary of Alpha 35mm full-frame mirrorless cameras.

You may as well use can apply it to a smaller APS-C physique just like the Sony A6000 collection of cameras, the place the equal focal size will change to 30-60mm.

The Tamron 20-40mm for Sony options 11 components in 12 teams together with 4 LD (Low Dispersion), two GM (Glass Molded Aspherical) and one hybrid aspherical lens components.

It has a rounded 9 blade diaphragm which creates a sexy blur to the out-of-focus areas of the picture.

The Tamron 20-40mm incorporates a VXD (Voice-coil eXtreme-torque Drive) linear autofocus motor that delivers quick and quiet auto-focusing.

It gives an impressively shut 0.17m minimal focusing distance and a most magnification of 1:3.8.

This lens has a moisture-resistant development and a fluorine coating to guard in opposition to mud, dust, and smearing.

The Tamron 20-40mm F/2.8 Di III VXD lens is priced at round £879 / $699 within the UK and the US, respectively.

Ease of Use

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

Weighing in at 365g and measuring simply over 8.6cm in size, the Tamron 20-40mm F/2.8 Di III VXD is a really compact and light-weight lens contemplating the quick most aperture and the versatile wide-angle to regular zoom vary that it gives.

Focusing is totally inside however zooming shouldn’t be, with the size of the lens altering as you zoom from 40mm to 20mm, steadily extending additional by 1cm as you progress by means of the vary.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

As with most different latest Tamron lenses that we have reviewed, construct high quality is nice. The Tamron 20-40mm for Sony feels stable sufficient in your hand, regardless of its largely high-grade plastic development.

It has a shiny, shiny black end, a sample on the main target and zoom rings, and a scratch and fingerprint resistant exterior.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

There’s a metallic lens mount and it accepts 67mm filters. It advantages from a moisture-resistant development which helps to forestall moisture from penetrating the lens, though we would hesitate to make use of it in heavy rain for a chronic interval.

The Tamron 20-40mm F/2.8 Di III VXD has a reasonably slim, ridged focus ring. Guide focusing is barely attainable by delving into the menu system – there isn’t any devoted AF/MF swap to toggle between AF and MF on this lens.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

The zoom ring is easy and well-balanced, however the handbook focus ring is not notably well-damped and and due to this fact feels gentle in use.

There are additionally no arduous stops on the ends of the focal vary, making it tougher to set focus at infinity. Polariser customers needs to be happy that the 67mm filter thread does not rotate on focus.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

The Tamron 20-40mm for Sony zoom lens makes use of a VXD (Voice-coil eXtreme-torque Drive) linear autofocus motor for quick and quiet auto-focusing.

It proved to be a really fast performer on the Sony A7R IV digital camera that we examined it with, and we hardly skilled any “looking” both in good or unhealthy gentle, with the lens precisely focusing nearly the entire time.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

It’s also virtually utterly silent when auto-focusing, making it excellent for film capturing or for extra candid use.

Importantly, the lens is totally appropriate with the “Direct Guide Focus (DMF)” system function of Sony cameras that permits the consumer to immediately swap between autofocus and handbook focus.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

The Tamron 20-40mm F/2.8 Di III VXD does not function optical picture stabilisation, so you may must depend on the digital camera physique’s personal built-in stabilisation system (if it has one).

The USB-C Connector Port permits you to replace and customise the lens instantly utilizing the TAMRON Lens Utility software program, slightly than through a digital camera physique.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

We’re a little bit involved that this port is uncovered, though Tamron state that it’s totally water-proofed and due to this fact {that a} cowl shouldn’t be crucial.

Within the customisation, the path and pace of focus might be modified. The main target ring can be utilized for aperture as an alternative of handbook focusing, whereas the main target maintain button might be customised for preset focus factors 1 and a pair of for video so to pull focus from one to the opposite at a chosen pace.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

The Tamron 20-40mm for Sony lens is designed in Japan and made in Vietnam.

It is equipped with with plastic lens caps and a very good high quality plastic petal-shaped lens hood (HA062), however not with a bag or case.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

Focal Vary

On the 20mm focal size the angle of view is 94°30′.

Sigma 35mm F1.4 DG HSM

On the 20mm focal size the angle of view is 56°49′.

Sigma 35mm F1.4 DG HSM

Chromatic Aberrations

Chromatic aberrations, sometimes seen as blue or purple fringes alongside contrasty edges, weren’t too obvious in our take a look at pictures, solely showing in excessive distinction areas.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

Mild Fall-off

With the lens set to its most aperture of f/2.8, there’s some important gentle fall-off within the corners, requiring you to cease down by no less than 3 f-stops to utterly stop it.

Tamron 20-40mm F/2.8 Di III VXD

20mm

Tamron 20-40mm F/2.8 Di III VXD

40mm

Distortion

This lens suffers from some very apparent barrel distortion at 20mm and equally apparent pincushion distortion at 40mm.

Tamron 20-40mm F/2.8 Di III VXD

20mm

Tamron 20-40mm F/2.8 Di III VXD

40mm

Sunstars and Flare

The Tamron 28-75mm F2.8 Di III VXD G2 produces very good sunstars when stopped-down to f/22, as proven beneath, and flare is effectively managed even when capturing instantly into the solar.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

Macro

The Tamron 20-40mm F/2.8 Di III VXD gives a minimal focusing distance of 0.17m /6.7in with a most magnification of 1:3.8, when set to the 20mm focal size, which makes it surprisingly helpful for close-ups.

On the 40mm focal size the minimal focusing distance is 0.29m /11.4in with a most magnification of 1:5.1.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

Bokeh

Bokeh is a phrase used for the out-of-focus areas of {a photograph}, and is normally described in qualitative phrases, equivalent to easy / creamy / harsh and so forth.

One of many motive to purchase such a quick lens because the Tamron 20-40mm F/2.8 Di III VXD is to have the ability to isolate the topic from the background.

Within the 20-40mm F/2.8 Di III VXD lens, Tamron have employed an iris diaphragm with 9 rounded blades, which has resulted in very interesting bokeh.

Beneath you may discover some examples, however you might be additionally inspired to take a look at our pattern pictures.

Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD
Tamron 20-40mm F/2.8 Di III VXD

Sharpness

With the intention to present you the way sharp the Tamron 20-40mm F/2.8 Di III VXD lens is, we’re offering 100% crops on the next pages.

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