CRT NIKKOR-O 1:1.2 f=55mm M=1/5 820692
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- «Nikon»
- Type 2
- Production year 1975
- 692nd of approx. 1.490 lenses produced (first «Nikon» CRT Nikkor 55/1.2 lens was #820001)
- High resolution lens for display of data from oscilloscope or other CRT sources
(CRT = Cathode Ray Tube) - 8 elements in 6 groups, Picture angle 37.2°
- Black front ring, filter ∅ 52mm
- No focusing ring
- Standard magnification 1/5x (M=1/5)
- «LENS MADE IN JAPAN» on black lens barrel
- Scalloped aperture setting ring, chrome
- Aperture scale f/1.2 to f/11
- 12 iris blades
- Extra long Leica L39 screw mount
- Dimensions approx. 54mm ∅ x 64mm
- Weight approx. 305g
- Nikon 52mm snap-on front lens cap
- Nikon F M39 Register Camera 6447384
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