NIKKOR✱ED 400mm 1:3.5 IF 175131
- «Nikon», Production year 1976
- 11th of 71 lenses produced (first 400/3.5 ED IF K-type lens was #175121)
- Glossy black enamel finish
- 8 elements in 6 groups, 2 ED elements
- Picture angle 6°10′
- Black front ring, filter ∅ 122mm
- Built-in retractable lens hood
- No distance preselecting
- Distance scale graduated in meters and feet from 4.5m (15 ft.) to infinity (∞)
- «LENS MADE IN JAPAN» on black lens barrel
- Tripod collar, rotating
- Filter holder for IF-Nikkor with built-in L37 filter
- K-type aperture ring
- Aperture scale f/3.5 to f/22, 9 iris blades
- Bayonet fixed by 5 cross-head screws
- Dimensions approx. 134mm ∅ x 304mm
- Weight approx. 2800g
- Nikon 122mm screw-in front lens cap
- Nikon LF-1 rear lens cap
- Nikon 122mm L37c filter, black rim
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