Comparison of Olympus 40-150mm ƒ/2.8 Pro M.Zuiko Digital ED and Pentax SMC DA* 50-135mm f/2.8 ED AL IF SDM [S]ave
| Attribute |  Olympus 40-150mm ƒ/2.8 Pro M.Zuiko Digital ED × |  Pentax SMC DA* 50-135mm f/2.8 ED AL IF SDM × |
|---|---|---|
| Aperture (f) | 2.80 - 22.00 | 2.80 - 22.00 |
| Diaphragm Blades Type | rounded | - |
| Filter Size (mm) | 72 | 67 |
| Notes | Dust, splash and freezeproof construction; Function button, manual focus clutch | Included Accessories: Lens Hood |
| Focus Details | - | Internal with "Quick Shift" AF/MF mechanism |
| Type | Telephoto Zoom | Telephoto Zoom |
| Diaphragm Blades | 9 | 9 |
| Diameter (mm) | 79.4 | 76.5 |
| Image Circle | Image Circle | APS-C |
| Focal Length (mm) | 40.00 - 150.00 | 50.00 - 135.00 |
| Brand | Olympus | Pentax |
| Name | Olympus 40-150mm ƒ/2.8 Pro M.Zuiko Digital ED | Pentax SMC DA* 50-135mm f/2.8 ED AL IF SDM |
| Weight (g) | 760 | 685 |
| Diagonal Angle of View (degree) | 8.20 - 30.00 | 11.90 - 31.50 |
| Lens Construction | 16 elements in 10 groups, including 1 aspherical ED, 2 aspherical, 1 SED, 1 HD and 3 ED elements | 18 elements in 14 groups, including 3 ED elements |
| Zoom System | Rotary | Rotary |
| Closest Focus (m) | 0.7 | 1 |
| 35mm Equivalent | 80 - 300mm | - |
| Length (mm) | 160 | 136 |
| APS Equivalent | - | 76.5 - 207mm |
| Magnification Ratio (x) | 0.21 | 0.17 |
Help · Contact us · Disclaimer · Contributors · Developers · Donate