AF DX Fisheye-Nikkor 10 f/2 ED from Nikon With a rounded diaphragm that makes out-of-focus elements appear more natural, a built-in flower-type lens hood and a 16mm equivalent focal length, the AF DX Fisheye-NIKKOR 10.5mm f/2 ED is optimized for DX-format Nikon D-SLR cameras. Nikon 10 Fisheye - Ken Rockwell Name: Nikon calls this the Nikon DX AF Fisheye-Nikkor 10.5mm f/2 ED. Optics: 10 elements in 7groups. CRC close-range correction. Diaphragm: 7 curved blades, stopping down to f/22. Close Focus: 5-1/2" (14 cm) from the back of the camera. This is 1.2" (3 cm) from the front of the lens, which is wild!
Related with nikon dx fisheye nikkor lens 10 5mm f 2 8g service manual repair guide