Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Canon RF 85mm F1.2L USM DS is the longer of the two lenses at 117mm. The Canon RF 85mm F2 Macro IS STM with a length of 91mm is 26mm shorter. Besides being longer, the Canon RF 85mm F1.2L USM DS also has a larger diameter of 103mm compared to Canon RF 85mm F2 Macro IS STM's 78mm diameter.
Below you can find the scaled side by side image of Canon RF 85mm F2 Macro IS STM and Canon RF 85mm F1.2L USM DS to get a better idea of how their size compare in real life.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Canon RF 85mm F2 Macro IS STM weighs 500g, which means it is 695g (139%) lighter than the Canon RF 85mm F1.2L USM DS which has a weight of 1195g.
Both Canon RF 85mm F2 Macro IS STM and Canon RF 85mm F1.2L USM DS has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R10, Canon R7 and Canon R5 C.