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 Canon RF 14-35mm F4L IS USM 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 14-35mm F4L IS USM with a length of 100mm, is 12mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 84mm.
Below you can find a scaled side-by-side image of Canon RF 10-20mm F4 L IS STM and Canon RF 14-35mm F4L IS USM 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 Canon RF 14-35mm F4L IS USM 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 14-35mm F4L IS USM weighs 540g, 5% (30g) lighter than the Canon RF 10-20mm F4 L IS STM's weight of 570g.
Below you can find the dimension and weight table of the Wideangle Zoom Lenses in Canon RF Mount for size comparison purposes.
Ultra-Wideangle Canon RF Mount
Lens Mounts
Both the Canon RF 10-20mm F4 L IS STM and the Canon RF 14-35mm F4L 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 R6 V , Canon R6 III and Canon C50 .
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 Canon RF 14-35mm F4L IS USM has a focal range of 14-35mm and 2.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 22.4 - 56mm .
