Mounts: Nikon Format: Full frame Construction: 20 elements in 14 groups, nine diaphragm blades Closest focus distance: 100cm Filter thread: 67mm filter thread Autofocus: ultrasonic (ring) Dimensions: 78 x 179mm, 850g Tested on: Nikon D7100 Until late 2012, a 70-200mm f/4 lens had been a glaring...