Comparison of Canon EF 15mm f/2.8 Fisheye and Olympus 8mm ƒ/1.8 Pro M.Zuiko Digital ED Fisheye [S]ave
| Attribute |  Canon EF 15mm f/2.8 Fisheye × |  Olympus 8mm ƒ/1.8 Pro M.Zuiko Digital ED Fisheye × |
|---|---|---|
| Notes | Fixed, petal-type hood; rear gelatin filter holder | Weather sealed; Fixed lens hood and a pinch-style lens cap LC-62 included. |
| Aperture (f) | 2.80 - 22.00 | 1.80 - 22.00 |
| Closest Focus (m) | 0.2 | 0.12 |
| Magnification Ratio (x) | 0.14 | 0.2 |
| Type | Fisheye Prime | Fisheye Prime |
| Focus Details | Focus Details | - |
| APS Equivalent | 24mm | - |
| Diaphragm Blades Type | - | circular |
| Image Circle | 35mm | Image Circle |
| Focal Length (mm) | 15.00 | 8.00 |
| Brand | Canon | Olympus |
| Name | Canon EF 15mm f/2.8 Fisheye | Olympus 8mm ƒ/1.8 Pro M.Zuiko Digital ED Fisheye |
| Weight (g) | 330 | 313 |
| Diagonal Angle of View (degree) | 180.00 | 180.00 |
| Diaphragm Blades | 5 | 7 |
| Diameter (mm) | 62 | 62 |
| Length (mm) | 73 | 80 |
| 35mm Equivalent | - | 16mm |
| Lens Construction | 8 elements in 7 groups | 17 elements in 15 groups, including 1 aspherical, 3 Super ED, 2 ED, 1 Super HR, and 2 HR elements |
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