NIKKOR-UD Auto 1:3.5 f=20mm No.449311
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- «Nippon Kogaku Japan», production year 1970/71
- first 20mm lens was No.421241
- black front ring, filter ∅ 72mm
- 11 elements in 9 groups, picture angle 94°
- distance scale graduated in meters and feet from 0.3m (1 ft.) to ∞
- «LENS MADE IN JAPAN» on black focusing ring («M» with vertical sides)
- scalloped aperture setting ring
- aperture scale f/3.5 to f/22, 7 iris blades
- bayonet fixed by 5 slot screws
- dimensions approx. 75mm ∅ x 69.5mm
- weight approx. 390g
- NIKKOR 72mm screw-in front lens cap, black
- NIPPON KOGAKU F rear lens cap
- Nikon 72mm HN-9 20/3.5 screw-in lens hood
- Nikon 72mm L1B screw-in filter, black rim
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