Comparison of Sigma 8mm f/3.5 EX DG Circular Fisheye and Sony SAL-16F28 16mm f/2.8 Fisheye [S]ave
| Attribute |  Sony SAL-16F28 16mm f/2.8 Fisheye × |  Sigma 8mm f/3.5 EX DG Circular Fisheye × |
|---|---|---|
| Name | Sony SAL-16F28 16mm f/2.8 Fisheye | Sigma 8mm f/3.5 EX DG Circular Fisheye |
| Weight (g) | 400 | 400 |
| Image Circle | 35mm | 35mm |
| Brand | Sony | Sigma |
| APS Equivalent | 24mm | 1.5x: 12mm; 1.6x: 12.8mm |
| Focal Length (mm) | 16.00 | 8.00 |
| Lens Construction | 11 elements in 8 groups | 11 Elements in 6 Groups, with 1 SLD element |
| Diameter (mm) | 75 | 73.5 |
| Magnification Ratio (x) | 0.15 | 0.22 |
| Closest Focus (m) | 0.21 | 0.14 |
| Notes | Included Accessories: SH0007 Petal Lens Hood | Available AF Mounts: Sigma, Canon, Nikon, (Pentax and Sony TBD); Included Accessories: Gelatin Filter Holder, Padded Case |
| Aperture (f) | 2.80 - 22.00 | 3.50 - 22.00 |
| Diagonal Angle of View (degree) | 180.00 | 180.00 |
| Type | Fisheye Prime | Fisheye Prime |
| Diaphragm Blades | 7 | 6 |
| Focus Details | Rear focusing | - |
| Length (mm) | 66.5 | 68.6 |
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