Nikkor 85mm f/1.8 H non-AI (classic non-AI '64-'72, multicoated non-AI '72-'75, K non-AI '75-'77)
This sample circa '70, factory AI conversion.
Filter size: 52mm
Close focus distance: 3.3 feet or 1 meter (the later K version focuses down to 2.8 feet or 0.85 meters)
Aperture range: f/1.8 - f/22
Aperture blades: 6
Depth of field scale for f/8, 16, 22 plus IR focusing index.
Design: 6 elements in 4 groups
Early versions (the first 7100 or so) have the identity ring inside the filter ring, later ones like this one have it one the outside of the lens barrel. The later K version focuses a little closer.
Richard de Stoutz
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