The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 20mm f2.8 Z and the Sigma 15mm f1.4 DG DN Art 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 15mm f1.4 DG DN Art is the longer of the two lenses at 158mm. The Viltrox AF 20mm f2.8 Z with a length of 60mm, is 98mm shorter. Besides being longer, the Sigma 15mm f1.4 DG DN Art also has a larger diameter of 104mm compared to the Viltrox AF 20mm f2.8 Z's 65mm diameter.
Below you can find a scaled side-by-side image of Viltrox AF 20mm f2.8 Z and Sigma 15mm f1.4 DG DN Art to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox AF 20mm f2.8 Z and the Sigma 15mm f1.4 DG DN Art 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 Z weighs 157g, which means it is 1203g (88%) lighter than the Sigma 15mm f1.4 DG DN Art which has a weight of 1360g.
Lens Mounts
The Viltrox AF 20mm f2.8 Z has the Nikon Z lens mount whereas the Sigma 15mm f1.4 DG DN Art has the Leica L 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 Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
Sigma 15mm f1.4 DG DN Art is also available in Sony E mount.
Focal Range
Viltrox AF 20mm f2.8 Z 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 15mm f1.4 DG DN Art is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 22.5mm .