Sigma 8mm f/4 EX DG lens
The Sigma 8mm f/4 EX DG is a photographic lens made by the Sigma Corporation. It is a circular fisheye lens for full-frame cameras, and has been replaced by the Sigma 8mm f/3.5 EX DG.
| Maker | Sigma Corporation | 
|---|---|
| Technical data | |
| Focal length | 8mm | 
| Diaphragm blades | 5 | 
| Construction | 10 elements in 6 groups | 
| Features | |
| Unique features | circular fisheye | 
| Physical | |
| Filter diameter | rear (Gelatin filter) | 
| Angle of view | |
| Horizontal | 180 | 
| Vertical | 180 | 
| Diagonal | 180 | 
| History | |
| Successor | Sigma 8mm f/3.5 EX DG | 
External links
    
- Sigma 8mm f/4 EX DG official page
 
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