The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 56mm f1.7 E and the Viltrox AF 40mm f2.5 E for their suitability to various photography scenarios:
Size and Weight Comparison
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 40mm f2.5 E weighs 180g, 3% (7g) lighter than the Viltrox AF 56mm f1.7 E's weight of 187g.
Filter Threads
Both the Viltrox AF 56mm f1.7 E and the Viltrox AF 40mm f2.5 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
Both the Viltrox AF 56mm f1.7 E and the Viltrox AF 40mm f2.5 E has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E10 II, Sony A6700 and Sony FX30.
Focal Range
Viltrox AF 56mm f1.7 E is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of
84mm when used on a APS-C / DX format camera.
On the other hand, the Viltrox AF 40mm f2.5 E 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.
