This lens is ideally suitable for those who want to get started into macro photography with a built-in option to create 1:2 (half-size) magnification. With the Life Size Converter EF the lens a 1:1 magnification (life-size) is possible. The lens has a focal length of 50mm.A superior-performance lens offering excellent optics and focusing from infinity down to one-half life size (0.5x). Its nine-element design features a floating optical system, which ensures top-notch performance even at close focusing distances. Light and compact, it functions beautifully as a general-purpose normal lens. The optional accessory Life Size Converter EF enables focusing down to life size (1:1), and actually increases working distance - very desireable in close-up
