Micro-NIKKOR 55mm 1:3.5 AI 940001

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«Nikon»
Production year 1977
First Micro-Nikkor 55/3.5 AI lens produced (yes, the very first Micro-Nikkor 55/3.5 AI lens was #940001!)
Picture angle 43°
Black front ring, filter ∅ 52mm
Rubber focusing ring
Distance scale graduated in meters and feet from 0.241m (9.5 in.) to infinity (∞)
Close-up distance scale marked «PK-3.13»
«LENS MADE IN JAPAN» on black lens barrel («M» with vertical sides)
Aperture scale f/3.5 to f/32
6 iris blades
Bayonet fixed by 5 cross-head screws
Dimensions approx. 66mm ∅ x 64.5mm
Weight approx. 245g
Nikon 52mm snap-on front lens cap
Nikon LF-1 rear lens cap
Came with Nikon EL2 #7812292