| Attribute | Value |
|---|---|
| Length | 68.6 mm |
| Type | Fisheye Prime |
| Weight | 400 g |
| Name | Sigma 8mm f/3.5 EX DG Circular Fisheye |
| Brand | Sigma |
| Image Circle | 35mm |
| Focal Length | 8.00 mm |
| APS Equivalent | 1.5x: 12mm; 1.6x: 12.8mm |
| Diaphragm Blades | 6 |
| Lens Construction | 11 Elements in 6 Groups, with 1 SLD element |
| Closest Focus | 0.14 m |
| Magnification Ratio | 0.22 x |
| Notes | Available AF Mounts: Sigma, Canon, Nikon, (Pentax and Sony TBD); Included Accessories: Gelatin Filter Holder, Padded Case |
| Aperture | 3.50 - 22.00 f |
| Diagonal Angle of View | 180.00 degree |
| Diameter | 73.5 mm |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Zoom System | Add |
| Diaphragm Blades Type | Add |
| Filter Size | Add |
| Front Element Rotation | Add |
| Focus Details | Add |