The fastest 135mm telephoto lens in its class. Ideal for indoor sports and portraits with background blur. Two UD-glass elements correct secondary spectrum for outstanding sharpness and color. Compatible with Extender EF 1.4x II and 2x II.
Focal Length & Maximum Aperture: 135mm 1:2.0
Lens Construction: 10 elements in 8 groups
Diagonal Angle of View: 18°
Focus Adjustment: Rear focusing system with USM
Closest Focusing Distance: 0.9m / 3 ft.
Filter Size: 72mm
Max. Diameter x Length, Weight: 3.2" x 4.4", 1.7 lbs. / 82.5 x 112.0mm, 750g