The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 85mm F1.8 ED UMC CS and the Canon RF 85mm F2 Macro IS STM 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 F2 Macro IS STM is the longer of the two lenses at 91mm. The Samyang 85mm F1.8 ED UMC CS with a length of 81mm, is 10mm shorter. Besides being longer, the Canon RF 85mm F2 Macro IS STM also has a larger diameter of 78mm compared to the Samyang 85mm F1.8 ED UMC CS's 68mm diameter.
Below you can find a scaled side-by-side image of Samyang 85mm F1.8 ED UMC CS and Canon RF 85mm F2 Macro IS STM to get a better idea of how their sizes compare in real life.
Comparison image of the Samyang 85mm F1.8 ED UMC CS and the Canon RF 85mm F2 Macro IS STM 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. Samyang 85mm F1.8 ED UMC CS weighs 344g, which means it is 156g (31%) lighter than the Canon RF 85mm F2 Macro IS STM which has a weight of 500g.
Filter Threads
The Samyang 85mm F1.8 ED UMC CS has a filter size of 62mm whereas the Canon RF 85mm F2 Macro IS STM has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Samyang 85mm F1.8 ED UMC CS:
And these are the 67mm filters that we recommend for the Canon RF 85mm F2 Macro IS STM:
Lens Mounts
The Samyang 85mm F1.8 ED UMC CS has the Fujifilm X lens mount whereas the Canon RF 85mm F2 Macro IS STM has the Canon RF lens mount . Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and Canon R6 V , Canon R6 III and Canon C50 for the Canon RF Mount.
Samyang 85mm F1.8 ED UMC CS is also available in the Canon EF-M and Sony E mounts.
Focal Range
Both lenses have the same focal range of
85mm but while Samyang 85mm F1.8 ED UMC CS has the fastest aperture of
F1.8 , the Canon RF 85mm F2 Macro IS STM's widest aperture value is
F2 .