NIKKOR 50mm 1:2 AI 3700001
- «Nikon»
- production year 1977
- first 50/2 AI lens was #3500001
- 6 elements in 4 groups, picture angle 46°
- black front ring, filter ∅ 52mm
- distance scale graduated in meters and feet from 0.45m (1.5 ft.) to infinity (∞)
- «MADE IN JAPAN» on black lens barrel
- AI coupled aperture ring
- aperture scale f/2 to f/16
- 6 iris blades
- bayonet fixed by 5 cross-head screws
- dimensions approx. 63.5mm ∅ x 53mm
- weight approx. 220g
- Nikon 52mm snap-on front lens cap
- Nikon LF-1 rear lens cap
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