Announced alongside the EOS M (
review) itself in July 2012, the EF-M 22mm f/2.0 STM remains one of three lenses for the system, and its only prime lens. Fortunately Canon went in a different direction than the competition when it came to the focal length and speed on offer for their mirrorless system's kit pancake lens. Whereas Panasonic, Sony, and Nikon have all made their kit pancakes f/2.8 lenses of 24mm or 28mm equivalent, Canon has produced an f/2.0 35mm equivalent.
