The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 85mm F1.4 GM II and the Sirui Sniper 56mm f1.2 E 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. Sony FE 85mm F1.4 GM II is the longer of the two lenses at 107mm. The Sirui Sniper 56mm f1.2 E with a length of 93mm, is 14mm shorter. Besides being longer, the Sony FE 85mm F1.4 GM II also has a larger diameter of 85mm compared to the Sirui Sniper 56mm f1.2 E's 72mm diameter.
Below you can find a scaled side-by-side image of Sony FE 85mm F1.4 GM II and Sirui Sniper 56mm f1.2 E to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 85mm F1.4 GM II and the Sirui Sniper 56mm f1.2 E 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. Sirui Sniper 56mm f1.2 E weighs 422g, 34% (220g) lighter than the Sony FE 85mm F1.4 GM II's weight of 642g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Sony E Mount for size comparison purposes.
Telephoto Lenses in Sony E Mount for Size Comparison
Filter Threads
The Sony FE 85mm F1.4 GM II has a filter size of 77mm whereas the Sirui Sniper 56mm f1.2 E has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Sony FE 85mm F1.4 GM II:
And these are the 58mm filters that we recommend for the Sirui Sniper 56mm f1.2 E:
Lens Mounts
Both the Sony FE 85mm F1.4 GM II and the Sirui Sniper 56mm f1.2 E has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Focal Range
Sony FE 85mm F1.4 GM 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 .
On the other hand, the Sirui Sniper 56mm f1.2 E 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.