NIKKOR-Q Auto 1:3.5 f=13.5cm No.725995

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«Nippon Kogaku Japan»
Production year 1960
First 13.5cm lens was No.720101
4 elements in 3 groups
Picture angle 18°
Chrome front ring, filter ∅ 52mm
Distance scale graduated in meters & feet from 1.5m (5 ft.) to infinity (∞)
Infrared mark: red dot
No «LENS MADE IN JAPAN» engraving
«PAT.PEND.» on chrome lens barrel
Aperture scale f/3.5 to f/22
6 iris blades
No bayonet screws
Dimensions approx. 66mm ∅ x 91.7mm
Weight approx. 380g
NIPPON KOGAKU 52mm snap-on front lens cap
NIPPON KOGAKU F rear lens cap
NIPPON KOGAKU F 52mm snap-on lens hood, «f=10.5cm 1:2.5 f=13.5cm 1:3.5», «U.S. PAT. 2,837,957 J. PAT. PEND.»