Comparison of Olympus 9-18mm f/4-5.6 ED Zuiko Digital and Pentax SMC P-FA 20-35mm f/4 AL [S]ave
| Attribute |  Olympus 9-18mm f/4-5.6 ED Zuiko Digital × |  Pentax SMC P-FA 20-35mm f/4 AL × |
|---|---|---|
| Notes | Includes lens cap, lens hood | - |
| Aperture (f) | 4.00 - 22.00 | 4.00 - 22.00 |
| Magnification Ratio (x) | 0.24 | 0.06 |
| Filter Size (mm) | 72 | 58 |
| Closest Focus (m) | 0.25 | 0.3 |
| Length (mm) | 73 | 68 |
| Focal Length (mm) | 9.00 - 18.00 | 20.00 - 35.00 |
| Diameter (mm) | 79.5 | 69.5 |
| Brand | Olympus | Pentax |
| Image Circle | Image Circle | 35mm |
| Name | Olympus 9-18mm f/4-5.6 ED Zuiko Digital | Pentax SMC P-FA 20-35mm f/4 AL |
| Weight (g) | 280 | 245 |
| Type | Wide Zoom | Wide Zoom |
| Diagonal Angle of View (degree) | 62.00 - 100.00 | 64.00 - 94.00 |
| Diaphragm Blades | 7 | - |
| Zoom System | Rotary | Rotary |
| Lens Construction | 13 elements in 9 groups, including 1 aspherical ED lens and 2 aspherical elements | 10 elements in 8 groups, including 2 aspherical elements |
| APS Equivalent | - | 30 - 52.5mm |
| 35mm Equivalent | 18 - 36mm | - |
Help · Contact us · Disclaimer · Contributors · Developers · Donate