Canon has announced its EF 50mm F1.8 STM lens, which uses a stepper motor for quieter and more responsive autofocus compared to its ‘Mark II’ predecessor. It also features a 7-blade circular aperture and minimum focus distance of 35cm – both improvements over the Mark II. This compact fifty is just 39mm long and weighs 160g, has a metal mount, and supports an optional integrated hood. Read more
Articles: Digital Photography Review (dpreview.com)