Nikon's AF fisheye for F-mount — 16mm f/2.8 diagonal fisheye with D-type communication.
The Nikon AF Nikkor 16mm f/2.8D Fisheye is Nikon's autofocus diagonal fisheye for F-mount — providing 180 degrees of diagonal fisheye coverage on full-frame. The D designation adds distance information for flash metering.
180-degree diagonal fisheye on full-frame — the image fills the entire frame with characteristic extreme barrel distortion. The f/2.8 is fast for a fisheye — useful for astrophotography. Autofocus — unusual for fisheye.
Nikon F mount with rear gel filter holder — no front filter thread. Approximately 290g — compact. D-type communication. Bulbous front element with built-in petal hood. Body-driven screw AF.
Available used at mid-range prices. The Sigma 15mm f/2.8 EX DG is an alternative. Fisheye is niche — creative, VR stitching, and astrophotography. For Nikon F-mount fisheye needs with AF convenience.