The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan 40mm F2 and the Viltrox AF 50mm F2.0 Air 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 50mm F2.0 Air is the longer of the two lenses at 59mm. The TTArtisan 40mm F2 with a length of 44mm, is 15mm shorter. Besides being longer, the Viltrox AF 50mm F2.0 Air also has a larger diameter of 68mm compared to the TTArtisan 40mm F2's 61mm 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. TTArtisan 40mm F2 weighs 167g, which means it is 53g (24%) lighter than the Viltrox AF 50mm F2.0 Air which has a weight of 220g.
Filter Threads
The TTArtisan 40mm F2 has a filter size of 52mm whereas the Viltrox AF 50mm F2.0 Air has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the TTArtisan 40mm F2:
And these are the 58mm filters that we recommend for the Viltrox AF 50mm F2.0 Air:
Lens Mounts
The TTArtisan 40mm F2 has the Sony E lens mount whereas the Viltrox AF 50mm F2.0 Air has the Nikon Z lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount.
TTArtisan 40mm F2 is also available in the Nikon Z and Leica L mounts.
Viltrox AF 50mm F2.0 Air is also available in Sony E mount.
Focal Range
TTArtisan 40mm F2 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 50mm F2.0 Air is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm.