The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 20mm f2.8 Z and the Tamron 15-30mm f2.8 VC USD 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 15-30mm f2.8 VC USD is the longer of the two lenses at 145mm. The Viltrox AF 20mm f2.8 Z with a length of 60mm, is 85mm shorter. Besides being longer, the Tamron 15-30mm f2.8 VC USD also has a larger diameter of 98mm compared to the Viltrox AF 20mm f2.8 Z's 65mm diameter.
Below you can find a scaled side-by-side image of Viltrox AF 20mm f2.8 Z and Tamron 15-30mm f2.8 VC USD to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox AF 20mm f2.8 Z and the Tamron 15-30mm f2.8 VC USD Size and Weight 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 AF 20mm f2.8 Z weighs 157g, which means it is 943g (85%) lighter than the Tamron 15-30mm f2.8 VC USD which has a weight of 1100g.
Lens Mounts
The Viltrox AF 20mm f2.8 Z has the Nikon Z lens mount whereas the Tamron 15-30mm f2.8 VC USD has the Nikon F (FX) lens mount . Some of the latest released cameras that are compatible with these mounts are Nikon ZR , Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Nikon D6 , Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Tamron 15-30mm f2.8 VC USD is also available in Canon EF and Sony Alpha mounts.
Focal Range
Viltrox AF 20mm f2.8 Z is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
30mm .
On the other hand, the Tamron 15-30mm f2.8 VC USD has a focal range of 15-30mm 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 22.5 - 45mm .