NIKKOR 50mm 1:2 3102260

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«Nikon»
production year 1974
first K-type 50/2 lens was #3100001
6 elements in 4 groups, picture angle 46°
black front ring, filter ∅ 52mm
double-rowed rubber focusing collar
distance scale graduated in meters and feet from 0.45m (1.5 ft.) to infinity (∞)
«LENS MADE IN JAPAN» on black lens barrel («M» with vertical sides)
diamond ridged aperture ring
aperture scale f/2 to f/16, 6 iris blades
bayonet fixed by 5 cross-head screws
dimensions approx. 63.5mm ∅ x 50.5mm
weight approx. 220g
Nikon FA-46 52mm snap-on front lens cap
Nikon LF-1 rear lens cap
Nikon HS-6 52mm snap-on lens hood
Nikon L37c 52mm screw-in filter, black rim