The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 85mm F1.2L USM DS and the Sigma 85mm F1.4 DG HSM 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. Sigma 85mm F1.4 DG HSM is the longer of the two lenses at 126mm. The Canon RF 85mm F1.2L USM DS with a length of 117mm, is 9mm shorter. On the other hand, the Canon RF 85mm F1.2L USM DS has a larger diameter of 103mm compared to the Sigma 85mm F1.4 DG HSM's 95mm diameter.
Below you can find a scaled side-by-side image of Canon RF 85mm F1.2L USM DS and Sigma 85mm F1.4 DG HSM to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 85mm F1.2L USM DS and the Sigma 85mm F1.4 DG HSM 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. Sigma 85mm F1.4 DG HSM weighs 1130g, 5% (65g) lighter than the Canon RF 85mm F1.2L USM DS's weight of 1195g.
Filter Threads
The Canon RF 85mm F1.2L USM DS has a filter size of 82mm whereas the Sigma 85mm F1.4 DG HSM has a 86mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Canon RF 85mm F1.2L USM DS:
And these are the 86mm filters that we recommend for the Sigma 85mm F1.4 DG HSM:
Lens Mounts
The Canon RF 85mm F1.2L USM DS has the Canon RF lens mount whereas the Sigma 85mm F1.4 DG HSM has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Canon R6 V , Canon R6 III and Canon C50 for the Canon RF Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
85mm but while Canon RF 85mm F1.2L USM DS has the fastest aperture of
F1.2 , the Sigma 85mm F1.4 DG HSM's widest aperture value is
F1.4 .
