The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 28mm F4.5 Z and the Sigma 16mm F1.4 C 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 16mm F1.4 C is the longer of the two lenses at 92mm. The Viltrox 28mm F4.5 Z with a length of 22mm, is 70mm shorter. Besides being longer, the Sigma 16mm F1.4 C also has a larger diameter of 72mm compared to the Viltrox 28mm F4.5 Z's 65mm 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. Viltrox 28mm F4.5 Z weighs 88g, which means it is 317g (78%) lighter than the Sigma 16mm F1.4 C which has a weight of 405g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Nikon Z Mount for size comparison purposes.
Wideangle Lenses in Nikon Z Mount for Size Comparison
Lens Mounts
Both the Viltrox 28mm F4.5 Z and the Sigma 16mm F1.4 C 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.
Sigma 16mm F1.4 C is also available in Canon RF mount.
Focal Range
Viltrox 28mm F4.5 Z is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42mm.
On the other hand, the Sigma 16mm F1.4 C is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of 24mm when used on a APS-C / DX format camera.
