Comparison of Olympus 300mm f/2.8 Zuiko Digital and Sigma 200-500mm f/2.8 EX DG APO [S]ave
| Attribute |  Sigma 200-500mm f/2.8 EX DG APO × |  Olympus 300mm f/2.8 Zuiko Digital × |
|---|---|---|
| 35mm Equivalent | - | 600mm |
| Diagonal Angle of View (degree) | - | 4.20 |
| Diameter (mm) | 236.5 | 129 |
| Notes | Available AF Mounts: Sigma, Canon, Nikon; The dedicated 2x "Attachment" ensures autofocusing at the 1000mm focal length. | Includes Lens Hood (LH-120) and Lens Case (LSH-1738) |
| Aperture (f) | 2.80 - 22.00 | 2.80 - 22.00 |
| Filter Size (mm) | 72 | - |
| Type | Telephoto Zoom | Telephoto Prime |
| Diaphragm Blades | 9 | 9 |
| Lens Construction | 17 elements in 13 groups, including SLD and 3 ELD elements | 13 elements in 11 groups, including 3 ED elements |
| Image Circle | 35mm | Image Circle |
| Focal Length (mm) | 200.00 - 500.00 | 300.00 |
| Brand | Sigma | Olympus |
| Name | Sigma 200-500mm f/2.8 EX DG APO | Olympus 300mm f/2.8 Zuiko Digital |
| Weight (g) | 15700 | 3300 |
| Focus Details | Internal | - |
| Length (mm) | 726 | 282 |
| APS Equivalent | 1.5x: 300 - 750mm; 1.6x: 320 - 800mm | - |
| Magnification Ratio (x) | 0.13 | 0.15 |
| Zoom System | Power Zoom | - |
| Closest Focus (m) | 2 | 2 |
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