The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 26mm f2.8 FE and the Tamron 20-40mm F2.8 VXD for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Tamron 20-40mm F2.8 VXD is the longer of the two lenses at 86mm. The Viltrox 26mm f2.8 FE with a length of 24mm, is 62mm shorter. Besides being longer, the Tamron 20-40mm F2.8 VXD also has a larger diameter of 74mm compared to the Viltrox 26mm f2.8 FE's 66mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Viltrox 26mm f2.8 FE weighs 130g, which means it is 235g (64%) lighter than the Tamron 20-40mm F2.8 VXD which has a weight of 365g.
Filter Threads
The Viltrox 26mm f2.8 FE has a filter size of 43mm whereas the Tamron 20-40mm F2.8 VXD has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 43mm filters that we recommend you to consider for the Viltrox 26mm f2.8 FE:
And these are the 67mm filters that we recommend for the Tamron 20-40mm F2.8 VXD:
Lens Mounts
Both the Viltrox 26mm f2.8 FE and the Tamron 20-40mm F2.8 VXD has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Focal Range
Viltrox 26mm f2.8 FE is a prime lens with fixed focal lenght of 26mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
39mm.
On the other hand, the 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 a 35mm (FF) equivalent of 30 - 60mm.