Nikon AF 20mm f/2.8D



Compact ultra-wideangle lens construction, 94° (70° with Nikon DX format) picture coverage with edge-to-edge sharpness, Close-Range Correction (CRC) system provides high performance at both near and far focusing distances.
Specifications
Lens construction
12 elements in 9 groups
Picture angle
94° [70° with Nikon digital cameras (Nikon DX format)]
Number of diaphragm blades
7
Minimum f/stop
22
Closest focusing distance
0.25m
Maximum reproduction ratio
1/8.3
Macro focusing
N/A
Focus-limit switch
N/A
M/A mode
N/A
Focus lock button
N/A
Wight (approx.)
270g
Lens cap
Snap-on
Lens hood
HB-4 (optional)
Lens case
CL-30S (optional)
Tripod collar
N/A
External front filter attachment frame
Does not rotate
External front filter
62mm
Slip-on filter
N/A
Built-in/rear filter
N/A
Circular polarizing filter
N/A
Circular polarizing filter II
N/A
Infrared compensation scale
Does have
Supplied accessories
62mm Snap-on front lens cap, Rear lens cap LF-1
Aperture ring
Does have
Distance scale
Does have
Material of bayonet ring
Metal
Dimensions (approx.) (from the camera lens mounting flange)
69—42.5 mm
AF-3
Usable, but vignetting may occur at ∞ (infinity) and macro settings. (0)
AF-4
Usable. (0): ( ) Indicates maximum number of usable hoods (HN-36 for AF-3/HN-37 for AF-4)