The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 16mm f1.8 FE and the Nikon 20mm f1.8G ED 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 16mm f1.8 FE is the longer of the two lenses at 103mm. The Nikon 20mm f1.8G ED with a length of 81mm, is 22mm shorter. Besides being longer, the Viltrox AF 16mm f1.8 FE also has a larger diameter of 85mm compared to the Nikon 20mm f1.8G ED's 83mm 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. Nikon 20mm f1.8G ED weighs 355g, 35% (195g) lighter than the Viltrox AF 16mm f1.8 FE's weight of 550g.
Filter Threads
Both the Viltrox AF 16mm f1.8 FE and the Nikon 20mm f1.8G ED have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Viltrox AF 16mm f1.8 FE has the Sony E lens mount whereas the Nikon 20mm f1.8G ED has the Nikon F (DX) 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 D6, Nikon D780 and Nikon D3500 for the Nikon F (DX) Mount.
Focal Range
Viltrox AF 16mm f1.8 FE is a prime lens with fixed focal lenght of 16mm.
On the other hand, the Nikon 20mm f1.8G ED 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.
