The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 30mm F1.4 C 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. Sigma 30mm F1.4 C is the longer of the two lenses at 73mm. The Canon EF-M 22mm f2 STM with a length of 24mm, is 49mm shorter. Besides being longer, the Sigma 30mm F1.4 C also has a larger diameter of 65mm compared to the Canon EF-M 22mm f2 STM's 61mm diameter.
Below you can find a scaled side-by-side image of Sigma 30mm F1.4 C and Canon EF-M 22mm f2 STM to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 30mm F1.4 C 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, 60% (160g) lighter than the Sigma 30mm F1.4 C's weight of 265g.
Filter Threads
The Sigma 30mm F1.4 C has a filter size of 52mm 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 52mm filters that we recommend you to consider for the Sigma 30mm F1.4 C:
And these are the 43mm filters that we recommend for the Canon EF-M 22mm f2 STM:
Lens Mounts
The Sigma 30mm F1.4 C has the Leica L 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 Leica TL2 , Leica TL and Leica T Typ 701 for the Leica L Mount and , and for the Canon EF-M Mount.
Sigma 30mm F1.4 C is also available in the Sony E , Micro Four Thirds , Fujifilm X , Nikon Z and Canon RF mounts.
Focal Range
Sigma 30mm F1.4 C is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of
45mm when used on a APS-C / DX format camera.
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.