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  6. AF Nikkor 20mm f/2.8D

AF Nikkor 20mm f/2.8D

Versatile ultra-wideangle lens for general photography

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  • CC

Key Features

  • 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

Focal length
20mm
Maximum aperture
f/2.8
Minimum aperture
22
Lens construction
12 elements in 9 groups
Picture angle
94° (70° with Nikon DX format) picture coverage with edge-to-edge sharpness
Closest focusing distance
0.25 m/0.85 ft.
Maximum reproduction ratio
1/8.3
No. of diaphragm blades
7
Filter/attachment size
62
Diameter x length
(extension from lens mount)
Appproximately 69 x 42.5 mm/2.7 x 1.7 in.
Weight
Approximately 270 g/9.5 oz.
Supplied accessories
62 mm Snap-on front lens cap, Rear lens cap LF-1

MTF Chart


Spatial Frequencies
S: Sagittal
M: Meridional
10 lines/mm
30 lines/mm

Lens Construction