Canon EF50MM F/1.8 STM Lens for Canon DSLR Cameras Canon EF50MM F/1.8 STM Lens for Canon DSLR Camera The lightweight, compact EF 50mm f/1.8 STM is the perfect entry level offering from Canon’s prime range of EOS lenses. With an 80 mm effective focal-length on APS-C cameras, 50 mm on full-frame cameras, it is perfect for portraits, night-time photography, and even action sequences. Circular 7-Blade Design Its vivid maximum aperture of f/1.8 not only excels in low light, but also capture gorgeous, sharp images and movies with beautiful background blur and bokeh thanks to its circular 7-blade design. Its latest lens arrangement with new lens coatings helps render images with outstanding colour balance, and minimised ghosting and flare. Compact and Fully Equipped For Movies The EF 50mm f/1.8 STM’s performance is outstanding, with a stepping motor (gear-type STM) to deliver near-silent, continuous Movie Servo AF for movies and speedy, smooth AF for stills. A restructured exterior with enhanced focus ring placement makes manual focus adjustments exceedingly simple and easy. Canon's most compact 50 mm lens, the EF 50 mm f/1.8 STM has a rugged metal mount, plus an improved minimum focusing distance of 1.15 ft. (0.35 m) and a maximum magnification of 0.21x. Offering enhanced performance for the best in movies and stills, it's a fixed focal length lens makes it perfect for photographers and moviemakers who want to expand the creative possibilities with their EOS cameras.