A superior-performance lens offers excellent optics and focuses from infinityown 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 increases working distance - very desirable in close-up shooting.