NIKKOR✱ED 400mm 1:5.6 AI 270031

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• «Nikon»
• Production year 1978
• 31st of 398 lenses produced (first 400mm f/5.6 AI lens type 2 was #270001)
• 5 elements in 3 groups, 1 ED-glass element
• Picture angle 6°10′
• Built-in retractable lens hood
• Black front ring, filter ∅ 72mm
• Lens data engraved on focusing ring
• Distance scale graduated in meters & feet from 5m (16 ft.) to infinity (∞)
• «LENS MADE IN JAPAN» on black DOF-ring
• Tripod collar, revolving
• Diamond grooved aperture ring, AI-coupled
• Aperture scale f/5.6 to f/32, 7 iris blades
• Bayonet fixed by 5 cross-head screws
• Dimensions approx. 83mm ∅ x 254.5mm
• Weight approx. 1,400g
• Nikon 72mm screw-in front lens cap
• Nikon LF-1 rear lens cap
• Nikon 72mm L37c screw-in filter, black rim

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