Comparison of Nikon 10.5mm f/2.8G ED AF DX Fisheye Nikkor and Sigma 8mm f/4 EX DG Circular Fisheye [S]ave
| Attribute |  Nikon 10.5mm f/2.8G ED AF DX Fisheye Nikkor × |  Sigma 8mm f/4 EX DG Circular Fisheye × |
|---|---|---|
| Aperture (f) | 2.80 - 22.00 | 4.00 - 32.00 |
| Magnification Ratio (x) | 0.2 | 0.07 |
| Notes | Included Accessories: CL-08715 soft case, lens cover, rear cap | Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax; Included Accessories: Gelatin Filter Holder, Fitted, Padded Case |
| Focus Details | Internal Focusing | - |
| Closest Focus (m) | 0.14 | 0.2 |
| Lens Construction | 10 elements in 7 groups, including 1 ED Element | 10 Elements in 6 Groups |
| Length (mm) | 64 | 63 |
| Focal Length (mm) | 10.50 | 8.00 |
| APS Equivalent | 15.75mm | 1.5x: 12mm; 1.6x: 12.8mm |
| Brand | Nikon | Sigma |
| Image Circle | APS-C | 35mm |
| Name | Nikon 10.5mm f/2.8G ED AF DX Fisheye Nikkor | Sigma 8mm f/4 EX DG Circular Fisheye |
| Weight (g) | 306 | 320 |
| Type | Fisheye Prime | Fisheye Prime |
| Diaphragm Blades Type | rounded | - |
| Diaphragm Blades | 7 | 5 |
| Diagonal Angle of View (degree) | 180.00 | 180.00 |
| Diameter (mm) | 64 | 73.5 |
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