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Nikon AF DX Fisheye-Nikkor 10.5mm f/2.8G ED 
Summary
The AF DX Fisheye-Nikkor 10.5mm f/2.8G ED is a fisheye lens manufactured by Nikon for use on Nikon DX format digital SLR cameras. It provides a full 180-degree angle of view on a DX format camera.
 | |
| Maker | Nikon |
|---|---|
| Technical data | |
| Focal length | 10.5mm |
| Crop factor | 1.5 |
| Aperture (max/min) | f/2.8 - f/22 |
| Close focus distance | 0.14m |
| Max. magnification | 1:5 |
| Diaphragm blades | 7 (rounded) |
| Construction | 10 elements in 7 groups |
| Features | |
| Ultrasonic motor |  No |
| Lens-based stabilization | No |
| Macro capable | No |
| Application | Fisheye |
| Physical | |
| Max. length | 62.5mm |
| Diameter | 63mm |
| Weight | 305g |
| Filter diameter | Rear gelatin type |
| Accessories | |
| Lens hood | Built in |
| Case | CL-00715 |
| Angle of view | |
| Diagonal | 180° (with DX format) |
| History | |
| Introduction | 2003 |
Introduction edit
Nikon announced the lens on 22 July 2003.[2] It was the first prime lens released by Nikon specifically designed for Nikon DX format DSLR cameras. The lens produces a distinctive rectangular fisheye image, which fills the DX format frame (as opposed to a circular fisheye lens which produces a circular image). The lens does not support autofocus on the D40, D40X, D60, D3000, and D5000 as it does not have a built-in focus motor.
Features edit
- 10.5mm focal length (approximately equivalent to a 16mm lens used on a 135 film format camera).
- Nikon F-lens mount exclusively for use with Nikon DX format DSLRs.
- Full 180-degree angle of view.
- Rectangular fisheye image.
Construction edit
- 10 elements in 7 groups.
- 1 ED (extra low dispersion) glass element.
- Built-in hood.
- Rear gelatin filter (no front filter thread).
References edit
External links edit
- Fisheyes – III – The AF Fisheye-Nikkor 16 mm f/2.8D, by Pierre Toscani: an inverse ray tracing study of this lens, including its mapping function and the behavior of its entrance pupil.