The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon Z 20mm F1.8 S and the Sigma 14mm F1.8 DG HSM 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. Sigma 14mm F1.8 DG HSM is the longer of the two lenses at 126mm. The Nikon Z 20mm F1.8 S with a length of 109mm, is 17mm shorter. Besides being longer, the Sigma 14mm F1.8 DG HSM also has a larger diameter of 95mm compared to the Nikon Z 20mm F1.8 S's 85mm diameter.
Below you can find a scaled side-by-side image of Nikon Z 20mm F1.8 S and Sigma 14mm F1.8 DG HSM to get a better idea of how their sizes compare in real life.
Comparison image of the Nikon Z 20mm F1.8 S and the Sigma 14mm F1.8 DG HSM 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. Nikon Z 20mm F1.8 S weighs 505g, which means it is 665g (56%) lighter than the Sigma 14mm F1.8 DG HSM which has a weight of 1170g.
Lens Mounts
The Nikon Z 20mm F1.8 S has the Nikon Z lens mount whereas the Sigma 14mm F1.8 DG HSM has the Nikon F (FX) lens mount . Some of the latest released cameras that are compatible with these mounts are Nikon ZR , Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Nikon D6 , Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Sigma 14mm F1.8 DG HSM is also available in Sigma SA and Canon EF mounts.
Focal Range
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 .
On the other hand, the Sigma 14mm F1.8 DG HSM is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 21mm .