Quick Specs
Our Verdict
Tamron continues to diversify its range of lenses for Sony E hybrids. The latest addition is the 20-40mm F/2.8 Di III VXD, a bright wide-angle zoom lens designed primarily for vlogging.nProsnn Responsive autofocus.n Steady aperturen Very good level of sharpness<
Tamron continues to diversify its range of lenses for Sony E hybrids. The latest addition is the 20-40mm F/2.8 Di III VXD, a bright wide-angle zoom lens designed primarily for vlogging.
Pros
- Responsive autofocus.
- Steady aperture
- Very good level of sharpness
- Resistant to humidity and dust
- Lightweight construction and small size
Cons
- Not very versatile focal length range
- Marked distortions at 20 and 40mm
Overview
A new focal length for Sony hybrids
Tamron is alone in the field with this small zoom lens. Still, rivals could come close, such as Sigma's 16-28mm F2.8 DG DN Contemporary or the Sony Vario-Tessar T* FE 16-35mm F4 ZA OSS, not to mention the two lenses above from Tamron and Sony.
Ergonomics
Customisable from a PC or smartphone
The lens is a perfect match for the latest "rocks" like the 28-75mm F/2.8 Di III VXD G2. The design is identical, but the newcomer loses the customisable button. However, it retains the USB-C port which allows updating from a computer or Android smartphone using the Tamron Lens Utility app.
Protected from the elements
Several parameters can be changed, such as the speed of AF transitions or assigning the focus ring another function (control of aperture, exposure, etc.). As for the optical construction, there are 12 elements divided into 12 groups. We would have hoped for an internal zoom, but this is not the case and the lens extends slightly from 20 to 40 mm.For the more adventurous, the Tamron 20-40mm F/2.8 Di III VXD is weather protected and should withstand a little rain.
CONCLUSIO
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