EF 135mm f/2.0L USM

Features Focal length and maximum aperture: 135 mm 1:2 Lens construction: 10 elements in 8 groups Diagonal angle of view: 18° Focus adjustment: Rear focusing system with USM Closest focusing distance: 0.9m / 3ft Filter size: 72mm Ideal for indoor sports and portraits with background blur The fastest and lightest 135mm telephoto lens in its class. Ideal for indoor sports photography and portraits with background blur.Two UD-glass elements correct secondary spectrum for outstanding sharpness and color. Compatible with Extender EF 1.4x and 2x.