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 Venus 10-18mm F4.5-5.6 FE Zoom 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 Venus 10-18mm F4.5-5.6 FE Zoom with a length of 91mm, is 21mm shorter. Besides being longer, the Canon RF 10-20mm F4 L IS STM also has a larger diameter of 84mm compared to the Venus 10-18mm F4.5-5.6 FE Zoom's 61mm diameter.
Below you can find a scaled side-by-side image of Canon RF 10-20mm F4 L IS STM and Venus 10-18mm F4.5-5.6 FE Zoom 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 Venus 10-18mm F4.5-5.6 FE Zoom 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. Venus 10-18mm F4.5-5.6 FE Zoom weighs 496g, 12% (74g) lighter than the Canon RF 10-20mm F4 L IS STM's weight of 570g.
Lens Mounts
The Canon RF 10-20mm F4 L IS STM has the Canon RF lens mount whereas the Venus 10-18mm F4.5-5.6 FE Zoom 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 Venus 10-18mm F4.5-5.6 FE Zoom has a focal range of 10-18mm and 1.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 15 - 27mm .