The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 12mm f2.0 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 an important deciding factor when comparing two lenses. Samyang 12mm f2.0 is the longer of the two lenses at 59mm. The Canon EF-M 22mm f2 STM with a length of 24mm, is 35mm shorter. Besides being longer, the Samyang 12mm f2.0 also has a larger diameter of 73mm compared to the Canon EF-M 22mm f2 STM's 61mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Canon EF-M 22mm f2 STM weighs 105g, 59% (155g) lighter than the Samyang 12mm f2.0's weight of 260g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Canon EF-M Mount for size comparison purposes.
Wideangle Prime Lenses in Canon EF-M Mount for Size Comparison
Lens Mounts
Both the Samyang 12mm f2.0 and the Canon EF-M 22mm f2 STM has the same Canon EF-M lens mount. Some of the latest released cameras that are compatible with the Canon EF-M lenses are , and .
Samyang 12mm f2.0 is also available in Fujifilm X , Micro Four Thirds, Sony E and Samsung NX mounts.
Focal Range
Samyang 12mm f2.0 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a APS-C / DX format camera. 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.