Nikon AF-S NIKKOR 20MM F/1.8G ED
Type:Fmount, Type G AF-S lens with built-in CPU and F mount
Lens construction:13elements in, 11groups, (including 2 ED lens elements, 2 aspherical lens elements, and lens elements with Nano-Crystal coatings)
Angle of view:Nikon film SLR and FX-format D-SLR cameras: 94 , Nikon DX-format D-SLR cameras: 70
Minimum focus distance:0.2m (0.66ft), from focal plane
No. of diaphragm blades:7 (rounded diaphragm opening)
Dimensions:Approx. 82.5 mm maximum diameter x 80.5 mm (distance from camera lens mount flange)
Weight:Approx.355g (12.6 oz.)
Autofocus:Yes
AF-S (Silent Wave Motor):Yes
Internal focusing:Yes
Focus mode:Manual, Manual/Auto