The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang MF 85mm F1.4 RF and the Canon RF 70-200mm F2.8L IS USM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Canon RF 70-200mm F2.8L IS USM is the longer of the two lenses at 146mm. The Samyang MF 85mm F1.4 RF with a length of 99mm, is 47mm shorter. Besides being longer, the Canon RF 70-200mm F2.8L IS USM also has a larger diameter of 90mm compared to the Samyang MF 85mm F1.4 RF's 78mm diameter.
Below you can find a scaled side-by-side image of Samyang MF 85mm F1.4 RF and Canon RF 70-200mm F2.8L IS USM to get a better idea of how their sizes compare in real life.
The 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. Samyang MF 85mm F1.4 RF weighs 730g, which means it is 340g (31%) lighter than the Canon RF 70-200mm F2.8L IS USM which has a weight of 1070g.
Both the Samyang MF 85mm F1.4 RF and the Canon RF 70-200mm F2.8L IS 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.
Samyang MF 85mm F1.4 RF is a prime lens with fixed focal lenght of 85mm. Canon RF 70-200mm F2.8L IS USM has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 112 - 320mm.