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 E and the Rokinon 85mm F1.4 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 E is the longer of the two lenses at 94mm. The Rokinon 85mm F1.4 with a length of 75mm, is 19mm shorter. Besides being longer, the Sirui Sniper 75mm f1.2 E also has a larger diameter of 80mm compared to the Rokinon 85mm F1.4's 78mm 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. Sirui Sniper 75mm f1.2 E weighs 466g, which means it is 73g (13%) lighter than the Rokinon 85mm F1.4 which has a weight of 539g.
Filter Threads
The Sirui Sniper 75mm f1.2 E has a filter size of 67mm whereas the Rokinon 85mm F1.4 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 E:
And these are the 72mm filters that we recommend for the Rokinon 85mm F1.4:
Lens Mounts
The Sirui Sniper 75mm f1.2 E has the Sony E lens mount whereas the Rokinon 85mm F1.4 has the Sony Alpha lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Rokinon 85mm F1.4 is also available in Canon EF , Four Thirds, Pentax KAF, Samsung NX and Nikon F (FX) mounts.
Focal Range
Sirui Sniper 75mm f1.2 E 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 Rokinon 85mm F1.4 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.