The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 70-200mm F2.8L IS USM and the Olympus ED 35-100mm f2.0 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. Olympus ED 35-100mm f2.0 is the longer of the two lenses at 214mm. The Canon RF 70-200mm F2.8L IS USM with a length of 146mm, is 68mm shorter. Besides being longer, the Olympus ED 35-100mm f2.0 also has a larger diameter of 97mm compared to the Canon RF 70-200mm F2.8L IS USM's 90mm diameter.
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 70-200mm F2.8L IS USM weighs 1070g, which means it is 580g (35%) lighter than the Olympus ED 35-100mm f2.0 which has a weight of 1650g.
Filter Threads
Both the Canon RF 70-200mm F2.8L IS USM and the Olympus ED 35-100mm f2.0 have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Canon RF 70-200mm F2.8L IS USM has the Canon RF lens mount whereas the Olympus ED 35-100mm f2.0 has the Four Thirds 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 Olympus E-5, Olympus E-600 and Olympus E-620 for the Four Thirds Mount.
Focal Range
Canon RF 70-200mm F2.8L IS USM has a focal range of 70-200mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
112 - 320mm.
On the other hand, the Olympus ED 35-100mm f2.0 has a focal range of 35-100mm and 2.9X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 70-200mm when used on a FourThirds format camera.