Comparison of Olympus 40-150mm f/3.5-4.5 Zuiko Digital and Pentax SMC P-FA 135mm f/2.8 IF [S]ave
| Attribute |  Olympus 40-150mm f/3.5-4.5 Zuiko Digital × |  Pentax SMC P-FA 135mm f/2.8 IF × |
|---|---|---|
| Magnification Ratio (x) | 0.12 | - |
| Filter Size (mm) | 58 | 52 |
| Length (mm) | 107 | 79 |
| Closest Focus (m) | 1.5 | 0.7 |
| APS Equivalent | - | 202.5mm |
| Diameter (mm) | 77 | 64 |
| Image Circle | Image Circle | 35mm |
| Diagonal Angle of View (degree) | 8.20 - 30.00 | 18.00 |
| Name | Olympus 40-150mm f/3.5-4.5 Zuiko Digital | Pentax SMC P-FA 135mm f/2.8 IF |
| Brand | Olympus | Pentax |
| Weight (g) | 425 | 374 |
| Type | Telephoto Zoom | Telephoto Prime |
| Front Element Rotation | - | - |
| Notes | Includes Lens Hood (LH-61B); Compatible with TC-14 Teleconverter and EX-25 Extension Tube | - |
| Focal Length (mm) | 40.00 - 150.00 | 135.00 |
| Aperture (f) | 3.50 - 22.00 | 2.80 - 22.00 |
| Diaphragm Blades | 7 | - |
| Zoom System | Rotary | - |
| Lens Construction | 13 elements in 10 groups | 8 elements in 7 groups |
| Focus Details | - | Internal |
| 35mm Equivalent | 80 - 300mm | - |
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