Attribute | Olympus 90-250mm f/2.8 PRO ED Zuiko Digital × | Sigma APO 300mm ƒ/2.8 EX DG HSM × |
---|---|---|
Zoom System | Rotary | - |
Aperture (f) | 2.80 - 22.00 | 2.80 - 32.00 |
Diagonal Angle of View (degree) | 5.00 - 14.00 | 8.20 |
Filter Size (mm) | 105 | 46 |
Notes | Includes Lens Hood (LH-120B) and Lens Case (LSH-1738) | Available AF Mounts: [HSM version]: Sigma, Canon, Nikon; [w/o HSM]: Minolta, Pentax |
APS Equivalent | - | 1.5x: 450mm; 1.6x: 480mm |
Type | Telephoto Zoom | Telephoto Prime |
Diaphragm Blades | 9 | 9 |
Lens Construction | 17 elements in 12 groups, including 3 ED elements | 11 elements in 9 groups, including 2 ELD elements |
Image Circle | Image Circle | 35mm |
Focal Length (mm) | 90.00 - 250.00 | 300.00 |
Brand | Olympus | Sigma |
Name | Olympus 90-250mm f/2.8 PRO ED Zuiko Digital | Sigma APO 300mm ƒ/2.8 EX DG HSM |
Weight (g) | 3270 | 2400 |
Diameter (mm) | 124 | 119 |
Length (mm) | 276 | 214.5 |
35mm Equivalent | 180 - 500mm | - |
Magnification Ratio (x) | 0.08 | 0.13 |
Focus Details | - | Internal; HSM with full-time manual override |
Closest Focus (m) | 2.5 | 2.5 |