The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans FF 18mm f5.6 L 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 FF 18mm f5.6 L with a length of 32mm, is 28mm shorter. Besides being longer, the Viltrox AF 20mm f2.8 E also has a larger diameter of 65mm compared to the 7Artisans FF 18mm f5.6 L's 61mm diameter.
Below you can find a scaled side-by-side image of 7Artisans FF 18mm f5.6 L 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 FF 18mm f5.6 L 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. 7Artisans FF 18mm f5.6 L weighs 146g, which means it is 11g (7%) lighter than the Viltrox AF 20mm f2.8 E which has a weight of 157g.
Filter Threads
The 7Artisans FF 18mm f5.6 L has a filter size of 49mm whereas the Viltrox AF 20mm f2.8 E has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 49mm filters that we recommend you to consider for the 7Artisans FF 18mm f5.6 L:
And these are the 52mm filters that we recommend for the Viltrox AF 20mm f2.8 E:
Lens Mounts
The 7Artisans FF 18mm f5.6 L has the Leica L 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 Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Focal Range
7Artisans FF 18mm f5.6 L is a prime lens with fixed focal lenght of 18mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
27mm .
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 .
