Comparison of Olympus 300mm f/2.8 Zuiko Digital and Pentax SMC P-FA 600mm f/4 ED IF [S]ave
| Attribute |  Pentax SMC P-FA 600mm f/4 ED IF × |  Olympus 300mm f/2.8 Zuiko Digital × |
|---|---|---|
| Name | Pentax SMC P-FA 600mm f/4 ED IF | Olympus 300mm f/2.8 Zuiko Digital |
| Weight (g) | 6450 | 3300 |
| Image Circle | 35mm | Image Circle |
| Brand | Pentax | Olympus |
| 35mm Equivalent | - | 600mm |
| Focal Length (mm) | 600.00 | 300.00 |
| Closest Focus (m) | 5 | 2 |
| Focus Details | Internal | - |
| Notes | Included Accessories: Case | Includes Lens Hood (LH-120) and Lens Case (LSH-1738) |
| Magnification Ratio (x) | - | 0.15 |
| Aperture (f) | 4.00 - 32.00 | 2.80 - 22.00 |
| Diagonal Angle of View (degree) | 4.10 | 4.20 |
| Diameter (mm) | 175 | 129 |
| Type | Telephoto Prime | Telephoto Prime |
| Lens Construction | 9 elements in 7 groups | 13 elements in 11 groups, including 3 ED elements |
| Filter Size (mm) | 43 | - |
| Diaphragm Blades | - | 9 |
| APS Equivalent | 900mm | - |
| Length (mm) | 457 | 282 |
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