Compact and lightweight, the Canon EF 50mm f/1.8 S TM Lens has a fixed focal length that's perfect for daily photography. A large f/1.8 aperture makes it ideal for capturing photos in low light conditions and also for inducing a creative style of background blur in your images. The focal length can be enhanced to 80 mm by attaching the lens to an APS-C camera, which comes in handy for capturing portraits and fast moving subjects such as children or pets. The lens is also equipped with an STM stepping motor that supports the Movie Servo AF function for smooth and uninterrupted autofocusing during video shooting or continuous photography. A new and improved design boasts an expeditious focus ring placement and metal mount, making the lens the most compact, ergonomic, stable, and rugged of Canon's 50 mm lenses. Another admirable property of the Canon EF 50mm f/1.8 STM Lens is its optimized lens placement and coatings that assist in producing incredible color balance, and help negate ghost and flare. Some other brilliant features include seven circular aperture blades and a maximum magnification of 0.21x.