The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 10-20mm F4 L IS STM and the Sony 12-24mm F2.8 GM 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. Sony 12-24mm F2.8 GM is the longer of the two lenses at 137mm. The Canon RF 10-20mm F4 L IS STM with a length of 112mm, is 25mm shorter. Besides being longer, the Sony 12-24mm F2.8 GM also has a larger diameter of 98mm compared to the Canon RF 10-20mm F4 L IS STM's 84mm diameter.
Below you can find a scaled side-by-side image of Canon RF 10-20mm F4 L IS STM and Sony 12-24mm F2.8 GM to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 10-20mm F4 L IS STM and the Sony 12-24mm F2.8 GM 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. Canon RF 10-20mm F4 L IS STM weighs 570g, which means it is 277g (32%) lighter than the Sony 12-24mm F2.8 GM which has a weight of 847g.
Lens Mounts
The Canon RF 10-20mm F4 L IS STM has the Canon RF lens mount whereas the Sony 12-24mm F2.8 GM has the Sony E 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 Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Focal Range
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 .
On the other hand, the Sony 12-24mm F2.8 GM has a focal range of 12-24mm 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 18 - 36mm .
