Canon EF 200mm f/2.8L II USM Telephoto Fixed Lens for Canon SLR Cameras Lens not zoomable Lens construction: 9 elements in 7 groups. Closest Focusing Distance: 1.5m / 4.9 ft. 72mm filter Focal Length &amp; Maximum Aperture: 200mm 1:2.8 Max. Diameter x Length, Weight:3.3 x 5.4, 1.7 lbs. / 83.2 x 136.2mm, 765g