Tamron 20-40mm F2.8 VXD is a Fixed aperture Auto Focus (AF)
Wideangle Zoom lens with 35mm FF max sensor coverage, and it is designed to be used with Sony E mount cameras.
What type of photography is the Tamron 20-40mm F2.8 VXD lens good for?
The type of photography that you are planning to use the Tamron 20-40mm F2.8 VXD is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
| Photography Type |
Suitability |
| Bird/Wildlife | Poor |
| Sports | Poor |
| Portrait | Average |
| Travel | Good |
| Street | Very Good |
| Wedding | Average |
| Walk Around | Good |
| Vlogging | Very Good |
| Landscape | Very Good |
Reasons to Buy Tamron 20-40mm F2.8 Di III VXD Lens
Here, we've included a summary of the advantages and disadvantages of the Tamron 20-40mm F2.8 Di III VXD lens in a list form to help you determine whether it offers the features you need.
| Weather Sealed |
| Autofocus |
| Hood supplied |
| Full-time Manual Focusing |
| Fast Aperture at Wide end |
| Fast Aperture at Tele end |
| Constant f2.8 aperture throughout the range |
| Covers Full-Frame Sensor |
| 9 Diaphragm Blades |
| Minimum focus distance of 0.17m / 6.7 inch |
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| Lens Extents while zooming |
Lens Mount
Tamron 20-40mm F2.8 VXD is compatible with cameras that have Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7R V, Sony FX30 and Sony A7 IV.
Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Tamron 20-40mm F2.8 VXD has a maximum diameter of 74mm and total length of 86mm when not extended . It weighs 365g / 12.9 oz.
Tamron 20-40mm F2.8 VXD has a filter thread of 67mm.
Focal Range
Tamron 20-40mm F2.8 VXD has a focal range of 20-40mm and 2.0X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 30 - 60mm.
Weather Sealings
Tamron 20-40mm F2.8 VXD is a weather sealed lens which provides an extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have an effective protection, you have to pair the Tamron 20-40mm F2.8 VXD with a weather sealed camera body such as Sony A7R V, Sony FX30 and Sony A7 IV.
Optical Image Stabilization
Tamron 20-40mm F2.8 VXD doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Alternatively, you can check the Sony FE 16-35mm F4 ZA OSS in Sony E mount that have similar focal range but features Optical Image Stabilization.
Lenses Similar to Tamron 20-40mm F2.8 VXD With Optical Image Stabilization
Zoom Method
Tamron 20-40mm F2.8 VXD features Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Aperture
Tamron 20-40mm F2.8 VXD is a fixed aperture lens with a constant max aperture of f2.8 from 20mm all the way to the 40mm .
| Focal Length |
Max Aperture |
Min Aperture |
|
20mm
|
F2.8 |
F22 |
|
40mm
|
F2.8 |
F22 |
Optical Formula
Tamron 20-40mm F2.8 VXD's optical formula consists of 12 elements in 12 groups . Following special elements are used in this design:
- Four LD (low dispersion) elements
- two GM (Glass Molded Aspherical) elements
- one Hybrid Aspherical element
Lens Hood
Tamron 20-40mm F2.8 VXD comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
What's in the Box of Tamron 20-40mm F2.8 VXD?
Here are the items that are included inside the box of Tamron 20-40mm F2.8 VXD:
Tamron 20-40mm f/2.8 Di III VXD Lens for Sony E Front Lens Cap Rear Lens Cap Lens Hood Limited 6-Year Warranty
Body Colour
Tamron 20-40mm F2.8 VXD is available in Black color.
Popular Comparisons of Tamron 20-40mm F2.8 VXD
Here is the eight most popular comparisons of Tamron 20-40mm F2.8 VXD amongst Camera Decision readers.