The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang AF 85mm F1.4 RF and the Canon RF 85mm 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 85mm F1.2L USM is the longer of the two lenses at 117mm. The Samyang AF 85mm F1.4 RF with a length of 98mm, is 19mm shorter. Besides being longer, the Canon RF 85mm F1.2L USM also has a larger diameter of 103mm compared to the Samyang AF 85mm F1.4 RF's 88mm diameter.
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Below you can find a scaled side-by-side image of Samyang AF 85mm F1.4 RF and Canon RF 85mm F1.2L USM to get a better idea of how their sizes compare in real life.
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. Samyang AF 85mm F1.4 RF weighs 584g, which means it is 611g (51%) lighter than the Canon RF 85mm F1.2L USM which has a weight of 1195g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Canon RF Mount for size comparison purposes.
Telephoto Lenses in Canon RF Mount for Size Comparison
Filter Threads
The Samyang AF 85mm F1.4 RF has a filter size of 77mm whereas the Canon RF 85mm F1.2L USM has a 82mm 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 Samyang AF 85mm F1.4 RF:
And these are the 82mm filters that we recommend for the Canon RF 85mm F1.2L USM:
Lens Mounts
Both the Samyang AF 85mm F1.4 RF and the Canon RF 85mm F1.2L USM has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R100, Canon R8 and Canon R50.
Focal Range
Both lenses have the same focal range of
85mm but while Samyang AF 85mm F1.4 RF has the fastest aperture of
F1.4, the Canon RF 85mm F1.2L USM's widest aperture value is
F1.2.