Comparison of Sigma 15mm f/2.8 EX DG Diagonal Fisheye and Sony SAL-16F28 16mm f/2.8 Fisheye [S]ave
| Attribute |  Sony SAL-16F28 16mm f/2.8 Fisheye × |  Sigma 15mm f/2.8 EX DG Diagonal Fisheye × |
|---|---|---|
| Name | Sony SAL-16F28 16mm f/2.8 Fisheye | Sigma 15mm f/2.8 EX DG Diagonal Fisheye |
| Weight (g) | 400 | 370 |
| Image Circle | 35mm | 35mm |
| Brand | Sony | Sigma |
| APS Equivalent | 24mm | 1.5x: 22.5mm; 1.6x: 24mm |
| Focal Length (mm) | 16.00 | 15.00 |
| Lens Construction | 11 elements in 8 groups | 7 elements in 6 groups |
| Diameter (mm) | 75 | 73.5 |
| Magnification Ratio (x) | 0.15 | 0.26 |
| Closest Focus (m) | 0.21 | 0.15 |
| Notes | Included Accessories: SH0007 Petal Lens Hood | Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax |
| Aperture (f) | 2.80 - 22.00 | 2.80 - 22.00 |
| Diagonal Angle of View (degree) | 180.00 | 180.00 |
| Type | Fisheye Prime | Fisheye Prime |
| Diaphragm Blades | 7 | 7 |
| Focus Details | Rear focusing | - |
| Length (mm) | 66.5 | 65 |
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