The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 7-14mm F2.8-3.5 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 Canon RF 7-14mm F2.8-3.5 with a length of 109mm, is 3mm shorter. Besides being longer, the Canon RF 10-20mm F4 L IS STM also has a larger diameter of 84mm compared to the Canon RF 7-14mm F2.8-3.5's 77mm diameter.
Below you can find a scaled side-by-side image of Canon RF 7-14mm F2.8-3.5 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 Canon RF 7-14mm F2.8-3.5 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. Canon RF 7-14mm F2.8-3.5 weighs 476g, which means it is 94g (16%) lighter than the Canon RF 10-20mm F4 L IS STM which has a weight of 570g.
Below you can find the dimension and weight table of the Wideangle Fisheye Zoom Lenses in Canon RF Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon RF Mount for Size Comparison
Lens Mounts
Both the Canon RF 7-14mm F2.8-3.5 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 R6 V , Canon R6 III and Canon C50 .
Focal Range
Canon RF 7-14mm F2.8-3.5 has a focal range of 7-14mm and
2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
11.2 - 22.4mm .
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 .