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 Canon RF 50mm F1.2L USM 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. Canon RF 50mm F1.2L USM is the longer of the two lenses at 108mm. The Zeiss Otus 50mm f1.4 with a length of 100mm, is 8mm shorter. Besides being longer, the Canon RF 50mm F1.2L USM also has a larger diameter of 90mm compared to the Zeiss Otus 50mm f1.4's 77mm 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. Zeiss Otus 50mm f1.4 weighs 677g, which means it is 273g (28%) lighter than the Canon RF 50mm F1.2L USM which has a weight of 950g.
Filter Threads
The Zeiss Otus 50mm f1.4 has a filter size of 67mm whereas the Canon RF 50mm F1.2L USM has a 77mm 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 77mm filters that we recommend for the Canon RF 50mm F1.2L USM:
Lens Mounts
The Zeiss Otus 50mm f1.4 has the Sony E lens mount whereas the Canon RF 50mm F1.2L USM has the Canon RF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Canon R6 V, Canon R6 III and Canon C50 for the Canon RF Mount.
Zeiss Otus 50mm f1.4 is also available in the Canon RF and Nikon Z mounts.
Focal Range
Both lenses have the same focal range of
50mm but while Zeiss Otus 50mm f1.4 has the fastest aperture of
F1.4, the Canon RF 50mm F1.2L USM's widest aperture value is
F1.2.