Comparison of Olympus 50-200mm f/2.8-3.5 Zuiko Digital and Sigma APO 70-200mm f/2.8 EX DG HSM [S]ave
| Attribute |  Sigma APO 70-200mm f/2.8 EX DG HSM × |  Olympus 50-200mm f/2.8-3.5 Zuiko Digital × |
|---|---|---|
| Zoom System | Rotary with lock; Internal | Rotary |
| Aperture (f) | 2.80 - 32.00 | 2.80 - 22.00 |
| Diagonal Angle of View (degree) | 12.30 - 34.30 | 6.00 - 24.00 |
| Filter Size (mm) | 77 | 67 |
| Notes | Available AF Mounts: [HSM version]: Sigma, Canon, Nikon; [w/o HSM]: Minolta, Pentax | Includes Lens Hood (LH-70B) and Lens Case (LSH-1220); Compatible with TC-14 Teleconverter and EX-25 Extension Tube |
| Focus Details | Internal; HSM with full-time manual override | - |
| Type | Telephoto Zoom | Telephoto Zoom |
| Diaphragm Blades | 9 | 7 |
| Lens Construction | 17 elements in 14 groups, including 4 SLD elements | 16 elements in 15 groups, including 3 ED elements |
| Image Circle | 35mm | Image Circle |
| Focal Length (mm) | 70.00 - 200.00 | 50.00 - 200.00 |
| Brand | Sigma | Olympus |
| Name | Sigma APO 70-200mm f/2.8 EX DG HSM | Olympus 50-200mm f/2.8-3.5 Zuiko Digital |
| Weight (g) | 1270 | 1070 |
| Diameter (mm) | 86.2 | 87 |
| Length (mm) | 184 | 157 |
| 35mm Equivalent | - | 100 - 400mm |
| Magnification Ratio (x) | 0.13 | 0.21 |
| APS Equivalent | 1.5x: 105 - 300mm; 1.6x: 112 - 320mm | - |
| Closest Focus (m) | 1.8 | 1.2 |
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