The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 50mm f1.4 and the Sirui Sniper 33mm 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. Zeiss Otus 50mm f1.4 is the longer of the two lenses at 100mm. The Sirui Sniper 33mm f1.2 E with a length of 93mm, is 7mm shorter. Besides being longer, the Zeiss Otus 50mm f1.4 also has a larger diameter of 77mm compared to the Sirui Sniper 33mm f1.2 E's 72mm 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 33mm f1.2 E weighs 400g, 40% (277g) lighter than the Zeiss Otus 50mm f1.4's weight of 677g.
Filter Threads
The Zeiss Otus 50mm f1.4 has a filter size of 67mm whereas the Sirui Sniper 33mm 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 67mm filters that we recommend you to consider for the Zeiss Otus 50mm f1.4:
And these are the 58mm filters that we recommend for the Sirui Sniper 33mm f1.2 E:
Lens Mounts
The Zeiss Otus 50mm f1.4 has the Nikon Z lens mount whereas the Sirui Sniper 33mm f1.2 E has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Zeiss Otus 50mm f1.4 is also available in the Sony E and Canon RF mounts.
Focal Range
Zeiss Otus 50mm f1.4 is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
75mm.
On the other hand, the Sirui Sniper 33mm f1.2 E is a prime lens with fixed focal lenght of 33mm which has an effective (full-frame 35mm equivalent) focal range of 49.5mm when used on a APS-C / DX format camera.