Comparison of Olympus 14-42mm ƒ/3.5-5.6 ED M.Zuiko Digital and Pentax SMC P-FA 20-35mm f/4 AL [S]ave
| Attribute |  Pentax SMC P-FA 20-35mm f/4 AL × |  Olympus 14-42mm ƒ/3.5-5.6 ED M.Zuiko Digital × |
|---|---|---|
| Magnification Ratio (x) | 0.06 | 0.24 |
| Filter Size (mm) | 58 | 5 |
| Length (mm) | 68 | 43.5 |
| Closest Focus (m) | 0.3 | 0.25 |
| Zoom System | Rotary | Rotary |
| Diameter (mm) | 69.5 | 62 |
| Image Circle | 35mm | Image Circle |
| Diaphragm Blades Type | - | circular |
| Name | Pentax SMC P-FA 20-35mm f/4 AL | Olympus 14-42mm ƒ/3.5-5.6 ED M.Zuiko Digital |
| Brand | Pentax | Olympus |
| Weight (g) | 245 | 150 |
| Type | Wide Zoom | Standard Zoom |
| Front Element Rotation | - | - |
| Notes | - | Retractable, with lock switch. Includes lens cap and rear cap. |
| Focal Length (mm) | 20.00 - 35.00 | 14.00 - 42.00 |
| Aperture (f) | 4.00 - 22.00 | 3.50 - 22.00 |
| Diaphragm Blades | - | 7 |
| Diagonal Angle of View (degree) | 64.00 - 94.00 | 29.00 - 75.00 |
| Lens Construction | 10 elements in 8 groups, including 2 aspherical elements | 9 elements in 8 groups, including ED and 2 aspherical elements |
| APS Equivalent | 30 - 52.5mm | - |
| 35mm Equivalent | - | 28 - 84mm |
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