Comparison of Olympus 9-18mm ƒ/4-5.6 ED M.Zuiko Digital and Pentax SMC P-FA J 18-35mm f/4-5.6 AL [S]ave
| Attribute |  Pentax SMC P-FA J 18-35mm f/4-5.6 AL × |  Olympus 9-18mm ƒ/4-5.6 ED M.Zuiko Digital × |
|---|---|---|
| Aperture (f) | 4.00 - 32.00 | 4.00 - 22.00 |
| Diaphragm Blades Type | - | circular |
| Filter Size (mm) | 67 | 52 |
| Notes | Distance scale, petal-shaped lens hood | The internal focusing mechanism moves just one lens unit for focusing |
| Focus Details | Dedicated AF/MF | - |
| Type | Wide Zoom | Wide Zoom |
| Diaphragm Blades | 6 | 7 |
| Diameter (mm) | 67.5 | 56.6 |
| Image Circle | 35mm | Image Circle |
| Focal Length (mm) | 18.00 - 35.00 | 9.00 - 18.00 |
| Brand | Pentax | Olympus |
| Name | Pentax SMC P-FA J 18-35mm f/4-5.6 AL | Olympus 9-18mm ƒ/4-5.6 ED M.Zuiko Digital |
| Weight (g) | 190 | 155 |
| Diagonal Angle of View (degree) | 63.00 - 100.00 | 62.00 - 100.00 |
| Lens Construction | 12 elements in 10 groups | 12 elements in 8 groups, including 1 aspherical and 1 ED element |
| Zoom System | Rotary | Rotary |
| Closest Focus (m) | 0.28 | 0.25 |
| 35mm Equivalent | - | 18 - 36mm |
| Length (mm) | 71 | 49.5 |
| APS Equivalent | 27 - 52.5mm | - |
| Magnification Ratio (x) | 0.18 | 0.1 |
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