The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sirui Sniper 75mm f1.2 Z and the Viltrox AF 85mm f1.8 Z II 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. Sirui Sniper 75mm f1.2 Z is the longer of the two lenses at 96mm. The Viltrox AF 85mm f1.8 Z II with a length of 92mm, is 4mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 80mm.
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. Sirui Sniper 75mm f1.2 Z weighs 475g, which means it is 9g (1%) lighter than the Viltrox AF 85mm f1.8 Z II which has a weight of 484g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Nikon Z Mount for size comparison purposes.
Telephoto Lenses in Nikon Z Mount for Size Comparison
Filter Threads
The Sirui Sniper 75mm f1.2 Z has a filter size of 67mm whereas the Viltrox AF 85mm f1.8 Z II has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sirui Sniper 75mm f1.2 Z:
And these are the 72mm filters that we recommend for the Viltrox AF 85mm f1.8 Z II:
Lens Mounts
Both the Sirui Sniper 75mm f1.2 Z and the Viltrox AF 85mm f1.8 Z II 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.
Focal Range
Sirui Sniper 75mm f1.2 Z is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of
112.5mm when used on a APS-C / DX format camera.
On the other hand, the Viltrox AF 85mm f1.8 Z II 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.
