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 Z and the Nikon Z 20mm F1.8 S 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. Nikon Z 20mm F1.8 S is the longer of the two lenses at 109mm. The Viltrox AF 16mm f1.8 Z with a length of 103mm, is 6mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 85mm.
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 Z 20mm F1.8 S weighs 505g, 10% (60g) lighter than the Viltrox AF 16mm f1.8 Z's weight of 565g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Nikon Z Mount for size comparison purposes.
Ultra-Wideangle Lenses in Nikon Z Mount for Size Comparison
Filter Threads
Both the Viltrox AF 16mm f1.8 Z and the Nikon Z 20mm F1.8 S 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
Both the Viltrox AF 16mm f1.8 Z and the Nikon Z 20mm F1.8 S has the same Nikon Z lens mount. Some of the latest released cameras that are compatible with the Nikon Z lenses are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z.
Focal Range
Viltrox AF 16mm f1.8 Z is a prime lens with fixed focal lenght of 16mm.
On the other hand, the Nikon Z 20mm F1.8 S 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.
