The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 40mm f2.5 Z and the Viltrox AF 20mm f2.8 E 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. Viltrox AF 20mm f2.8 E is the longer of the two lenses at 60mm. The Viltrox AF 40mm f2.5 Z with a length of 56mm, is 4mm shorter. On the other hand, the Viltrox AF 40mm f2.5 Z has a larger diameter of 68mm compared to the Viltrox AF 20mm f2.8 E's 65mm diameter.
Below you can find a scaled side-by-side image of Viltrox AF 40mm f2.5 Z and Viltrox AF 20mm f2.8 E to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox AF 40mm f2.5 Z and the Viltrox AF 20mm f2.8 E 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 E weighs 157g, 12% (23g) lighter than the Viltrox AF 40mm f2.5 Z's weight of 180g.
Filter Threads
Both the Viltrox AF 40mm f2.5 Z and the Viltrox AF 20mm f2.8 E have the same Filter thread size of 52mm .
Below are links to the 52mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Viltrox AF 40mm f2.5 Z has the Nikon Z lens mount whereas the Viltrox AF 20mm f2.8 E has the Sony E 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 Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Focal Range
Viltrox AF 40mm f2.5 Z is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
60mm .
On the other hand, the Viltrox AF 20mm f2.8 E 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 .
