The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang AF 12mm f2 RF-S and the Canon RF 10-20mm F4 L 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 10-20mm F4 L IS STM is the longer of the two lenses at 112mm. The Samyang AF 12mm f2 RF-S with a length of 63mm, is 49mm shorter. Besides being longer, the Canon RF 10-20mm F4 L IS STM also has a larger diameter of 84mm compared to the Samyang AF 12mm f2 RF-S's 70mm diameter.
Below you can find a scaled side-by-side image of Samyang AF 12mm f2 RF-S and Canon RF 10-20mm F4 L IS STM to get a better idea of how their sizes compare in real life.
Comparison image of the Samyang AF 12mm f2 RF-S and the Canon RF 10-20mm F4 L 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 AF 12mm f2 RF-S weighs 213g, which means it is 357g (62%) lighter than the Canon RF 10-20mm F4 L IS STM which has a weight of 570g.
Lens Mounts
Both the Samyang AF 12mm f2 RF-S and the Canon RF 10-20mm F4 L IS STM has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R50 V , Canon R100 and Canon R50 .
Focal Range
Samyang AF 12mm f2 RF-S is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of
19.2mm when used on a APS-C / DX format camera.
On the other hand, the Canon RF 10-20mm F4 L IS STM has a focal range of 10-20mm and 2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 15 - 30mm .
