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Nikon Fisheye-Nikkor 16mm 1:2.8 AI-s

A new AI-s version of the previous 16mm f2.8 was introduced in 1982.
AI-S had sn >185001. The differences with AI versions are small but the optical construction was slightly different, as well as the new external look with a smaller focusing ring (only 2 rows of rectangular checkers in the rubber), and also a new coating was applied to the glasses.

The precious metal cap was lately replaced by the 61mm push-on, the same used on the 16mm AFD and on the 10.5mm f/28 G.

Filters are 4, rear bayonet-type: L1BC on the lens (later becoming L37C), O56, A2, B2 inside a blister included in the package, and named CA-2. The blister is in a kind of faux leather that degrades in time and for unknown environmental reasons.

NEVER BUY A 16MM 2.8, IN THE AI, AI-S, OR AFD VERSION IF IT HAS NOT THE L37C FILTER ON THE REAR LENS. It will affect field curvature and focus capabilities because it is PART OF THE OPTICAL DESIGN.


  • as always a great loads of infos on MIR website
  • A nice review by KenRockwell from an expert photographer perspective, even if not from a panoramic photographer he has a valuable approach in evaluating lenses.

Lens info
Focal Length:
Camera Format:
Lens Type:
Lens FOV:
Lens Mount:
Lens Hood:
Filter Type:
Bayonet Back
Lens Elements / Groups:
8 / 5
Image Circle:
> 44 mm
63 x 57 mm
335 g
Years Manufactered:

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