Nikkor 16mm f/3.5 Fisheye AI (classic non-AI '73-'76, K non-AI '75-'77, AI '77-'79)
This sample from '77.
Filter size: n/a (slip on cap, internal filters)
Close focus: 1 foot/0.3 meters
Aperture range: f/3.5 - f/22
Aperture blades: 7
Depth of field scale for f/3.5, f/11 - f/22, IR index.
Design: 8 elements in 5 groups
This is an uncommon lens, with about 4700 non-AI samples and 3000 K or AI samples. I think this lens is a better choice than the 16mm f/2.8, since it is actually cheaper and includes 4 built-in filters, neutral, yellow, orange, and red, which is perfect for black and white film photography. The f/2.8 takes bayonet mount rear filters and I've never seen one come with a full set of filters.
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