The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans AF 27mm F2.8 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 7Artisans AF 27mm F2.8 with a length of 48mm, is 12mm shorter. Besides being longer, the Viltrox AF 20mm f2.8 E also has a larger diameter of 65mm compared to the 7Artisans AF 27mm F2.8's 64mm diameter.
Below you can find a scaled side-by-side image of 7Artisans AF 27mm F2.8 and Viltrox AF 20mm f2.8 E to get a better idea of how their sizes compare in real life.
Comparison image of the 7Artisans AF 27mm F2.8 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, 8% (15g) lighter than the 7Artisans AF 27mm F2.8's weight of 172g.
Filter Threads
Both the 7Artisans AF 27mm F2.8 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
Both the 7Artisans AF 27mm F2.8 and the Viltrox AF 20mm f2.8 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 .
7Artisans AF 27mm F2.8 is also available in the Fujifilm X mount.
Focal Range
7Artisans AF 27mm F2.8 is a prime lens with fixed focal lenght of 27mm which has an effective (full-frame 35mm equivalent) focal range of
40.5mm when used on a APS-C / DX format camera.
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 .