NIKON 10.5/2.8 FISHEYE ED DX
The AF DX Fisheye-Nikkor 10.5mm f/2.8G ED, an important addition to the DX Nikkor lens lineup, the first fisheye lens designed specifically for digital SLR photography is also the first to achieve a full-frame 180 degree picture angle. The ultra-wideangle focal length of 10.5mm brings digital camera users a picture angle equivalent to that of a 16mm fisheye lens on a 35mm  format camera.
The lens is targeted at Nikon DX Format digital SLR camera users who seek the unique visual effects a full-frame fisheye lens lends to landscape and other shots, to taking close-ups, or when shooting within vehicles or other tight interiors.
The AF DX Fisheye-Nikkor 10.5mm f/2.8G ED excels at shooting extreme close-ups. Combining a minimum focus distance of just 3cm (1.2 in.) from the front of the lens with Nikon's Close-Range Correction (CC) System ensures sharp results.
The "Fisheye to Wideangle Transformation" function in the optional Nikon Capture 4 software package transforms diagonal fisheye images shot using the AF DX Fisheye-Nikkor 10.5mm f/2.8G ED to ultra-wideangle photos, (by transforming the type of projection). This is an appealing new feature made possible only with digital photography and with the Nikon Total Imaging System.
Optical and close-range focusing performance are both optimized for Nikon DX Format digital SLR cameras. An ED (Extra-low Dispersion) glass element minimizes chromatic aberration for clear, natural colors, and the rounded seven-blade diaphragm opening ensures a natural look to out-of-focus elements.
This G-type Nikkor lens is designed with no aperture rings. Its operation is easy and virtually mistake-free because the aperture does not have to be set to minimum. The compact, lightweight design fits comfortably in the hand. And photographers at all levels will be pleased with its outstanding cost performance.
Note: This lens is not compatible with 35mm  or IX 240 format film SLR cameras.
The true focal length of the new AF DX Fisheye-Nikkor 10.5mm f/2.8G ED is 10.5mm with a picture angle of 180°. The combination of reduced picture angle and a smaller image circle enabled the creation of the first fisheye lens in the DX Nikkor lineup.