The Canon EF-M 22mm f/2 STM Lens is a moderate wide-angle lens that 's exclusively designed for the EOS M Digital Camera. It features smooth and continuous AF with a built-in stepping motor, as well as a seven blade circular aperture. The lens is lightweight and small enough to carry around with you everywhere. Plus, it has a minimum focusing distance of 5.9 " (15 cm) and a bright f/2 aperture, which affords exceptional low-light performance