The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 56mm F1.4 C and the Nikon Z 85mm 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 85mm F1.8 S is the longer of the two lenses at 99mm. The Sigma 56mm F1.4 C with a length of 60mm, is 39mm shorter. Besides being longer, the Nikon Z 85mm F1.8 S also has a larger diameter of 75mm compared to the Sigma 56mm F1.4 C's 67mm 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. Sigma 56mm F1.4 C weighs 280g, which means it is 190g (40%) lighter than the Nikon Z 85mm F1.8 S which has a weight of 470g.
Filter Threads
The Sigma 56mm F1.4 C has a filter size of 55mm whereas the Nikon Z 85mm F1.8 S has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Sigma 56mm F1.4 C:
And these are the 67mm filters that we recommend for the Nikon Z 85mm F1.8 S:
Lens Mounts
Both the Sigma 56mm F1.4 C and the Nikon Z 85mm 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 RED Komodo-X 6K Z, Nikon Z50 II and Nikon Z30.
Sigma 56mm F1.4 C is also available in the Fujifilm X and Canon RF mounts.
Focal Range
Sigma 56mm F1.4 C is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of
84mm when used on a APS-C / DX format camera.
On the other hand, the Nikon Z 85mm F1.8 S is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 127.5mm.
