|  | |
| Maker | Sigma Corporation | 
|---|---|
| Technical data | |
| Type | circular fisheye lens | 
| Focal length | 8mm | 
| Crop factor | 180 degrees | 
| Aperture (max/min) | f/3.5 | 
| Close focus distance | 13.5cm | 
| Max. magnification | 1:4.6 | 
| Diaphragm blades | 6 | 
| Construction | 11 elements in 6 groups | 
| Features | |
| Short back focus |  No | 
| Ultrasonic motor |  No | 
| Lens-based stabilization |  No | 
| Macro capable |  No | 
| Unique features | circular fisheye | 
| Physical | |
| Max. length | 68.6mm | 
| Diameter | 73.5mm | 
| Weight | 400g (14.0oz) | 
| Filter diameter | rear (Gelatin filter) | 
| Accessories | |
| Lens hood | none | 
| Angle of view | |
| Horizontal | 180 | 
| Vertical | 180 | 
| Diagonal | 180 | 
| Retail info | |
| MSRP | $1230 USD | 
The Sigma 8mm f/3.5 EX DG is a photographic lens introduced on 9 August 2006. It is a circular fisheye lens, designed to project a 180-degree field of view in all directions onto a circular image when used on a full-frame camera. The lens is available in Canon, Nikon, and Sigma mounts.
External links
- Sigma 8mm f/3.5 EX DG official page
    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.