The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 15-35mm F2.8L IS USM and the Sony E 10-18mm F4 OSS 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 15-35mm F2.8L IS USM is the longer of the two lenses at 127mm. The Sony E 10-18mm F4 OSS with a length of 64mm, is 63mm shorter. Besides being longer, the Canon RF 15-35mm F2.8L IS USM also has a larger diameter of 89mm compared to the Sony E 10-18mm F4 OSS's 70mm diameter.
Below you can find a scaled side-by-side image of Canon RF 15-35mm F2.8L IS USM and Sony E 10-18mm F4 OSS to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 15-35mm F2.8L IS USM and the Sony E 10-18mm F4 OSS 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. Sony E 10-18mm F4 OSS weighs 225g, 73% (615g) lighter than the Canon RF 15-35mm F2.8L IS USM's weight of 840g.
Filter Threads
The Canon RF 15-35mm F2.8L IS USM has a filter size of 82mm whereas the Sony E 10-18mm F4 OSS has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Canon RF 15-35mm F2.8L IS USM:
And these are the 62mm filters that we recommend for the Sony E 10-18mm F4 OSS:
Lens Mounts
The Canon RF 15-35mm F2.8L IS USM has the Canon RF lens mount whereas the Sony E 10-18mm F4 OSS 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 ZV-E10 II , Sony A6700 and Sony FX30 for the Sony E Mount.
Focal Range
Canon RF 15-35mm F2.8L IS USM has a focal range of 15-35mm and
2.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
24 - 56mm .
On the other hand, the Sony E 10-18mm F4 OSS has a focal range of 10-18mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-27mm when used on a APS-C / DX format camera.