Nikon Focusing Unit for Long Focus Lenses 591951

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«Nikon JAPAN»
Production year 1973
Type 3
88mm screw-in lens mount (P=1.5mm)
Revolving tripod socket with large scalloped clamp screw
Small window near the aperture coupling lever
Distance scale plate for 600mm lens head, calibrated in meters only, focusing range ∞ to 11 meters (35 ft.)
Apertures 4.5 to 22
9 iris blades
Bayonet fixed by 5 cross-head screws
Nikon LF-1 rear lens cap
Original maker's box
matched with NIKKOR-P 1:5.6 f=600mm 610394