NIKKOR-H 1:2.5 f=18cm No.474073

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«Nippon Kogaku Japan»
type 3, production year 196?
473rd lens produced (first type 3 18cm lens was #473601)
6 elements in 4 groups, picture angle 13°30′
black front ring, filter ∅ 82mm
preset diaphragm
aperture scale f/2.5 to f/32, 12 iris blades
distance scale graduated in feet from 7 ft. to ∞
«LENS MADE IN JAPAN» on black lens mount ring («M» with slanted sides)
black tripod socket
dimensions approx. 90mm ∅ x 145mm
weight approx. 1,740g
NIPPON KOGAKU 82mm screw-in lens hood, engraved «f=18cm 1:2.5», series IX filter adapter
NIPPON KOGAKU 82mm screw-in front lens cap, black
came with rotating Nikon N-F Adapter Coupler