The 50mm f/1.8 Lens for Canon EF Mount from Yongnuo is a very lightweight standard focal length prime lens with a fast maximum aperture for effective low light capture and shallow depth of field control. With both manual and auto focus capability, this is a versatile, convenient and easy-to-carry optic with a focal length ideal for everyday shooting. Multi-coated lens optics provide enhanced light transmission and reduce ghosting and flare. The lens fits Canon EF mount DSLRs in both the full frame and APS-C format. On APS-C format cameras, its 35mm focal length equivalence is 80mm. Its minimum focus distance is 1.5' and it offers a 52mm filter thread diameter.