NIKKOR-P Auto 1:2.5 f=10.5cm No.136622

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• «Nippon Kogaku Japan», production year 1961
• first 10.5cm lens w/o tick-marks was No.121xxx
• 5 elements in 3 groups, picture angle 23°20′
• chrome front ring, filter ∅ 52mm
• distance scale graduated in meters only from 1.2m to infinity (∞)
• no «LENS MADE IN JAPAN» engraving
• no «PAT.PEND.» engraving
• ribbed aperture setting ring
• aperture scale f/2.5 to f/22, 6 iris blades
• no bayonet screws
• dimensions approx. 66mm ∅ x 72.7mm
• weight approx. 370g
• NIKKOR 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», «US.PAT. J.PAT. PEND.»

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