The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 28mm F2.8 STM and the Canon EF-M 22mm f2 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 28mm F2.8 STM is the longer of the two lenses at 25mm. The Canon EF-M 22mm f2 STM with a length of 24mm, is 1mm shorter. Besides being longer, the Canon RF 28mm F2.8 STM also has a larger diameter of 69mm compared to the Canon EF-M 22mm f2 STM's 61mm diameter.
Below you can find a scaled side-by-side image of Canon RF 28mm F2.8 STM and Canon EF-M 22mm f2 STM to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 28mm F2.8 STM and the Canon EF-M 22mm f2 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 EF-M 22mm f2 STM weighs 105g, 12% (15g) lighter than the Canon RF 28mm F2.8 STM's weight of 120g.
Filter Threads
The Canon RF 28mm F2.8 STM has a filter size of 55mm whereas the Canon EF-M 22mm f2 STM has a 43mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Canon RF 28mm F2.8 STM:
And these are the 43mm filters that we recommend for the Canon EF-M 22mm f2 STM:
Lens Mounts
The Canon RF 28mm F2.8 STM has the Canon RF lens mount whereas the Canon EF-M 22mm f2 STM has the Canon EF-M 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
Focal Range
Canon RF 28mm F2.8 STM is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
44.8mm .
On the other hand, the Canon EF-M 22mm f2 STM is a prime lens with fixed focal lenght of 22mm which has an effective (full-frame 35mm equivalent) focal range of 33mm when used on a APS-C / DX format camera.
