Comparison of Olympus 25mm f/2.8 Zuiko Digital and Pentax SMC DA 40mm ƒ/2.8 XS [S]ave
| Attribute |  Olympus 25mm f/2.8 Zuiko Digital × |  Pentax SMC DA 40mm ƒ/2.8 XS × |
|---|---|---|
| Aperture (f) | 2.80 - 22.00 | 2.80 - 22.00 |
| Diaphragm Blades Type | circular | rounded |
| Filter Size (mm) | 43 | 27 |
| Notes | Included Accessories: Lens cap (LC-43), rear cap (LR-1). Screw-in aluminum lens cap, and lens hood optional. | 27mm objective cap and rear cap included. |
| APS Equivalent | - | 61mm |
| Type | Standard Prime | Standard Prime |
| Diaphragm Blades | 7 | 9 |
| 35mm Equivalent | 50mm | - |
| Image Circle | Image Circle | APS-C |
| Focal Length (mm) | 25.00 | 40.00 |
| Brand | Olympus | Pentax |
| Name | Olympus 25mm f/2.8 Zuiko Digital | Pentax SMC DA 40mm ƒ/2.8 XS |
| Weight (g) | 95 | 51 |
| Diagonal Angle of View (degree) | 47.00 | 39.00 |
| Lens Construction | 5 elements in 4 groups, including aspherical element | 5 elements in 4 groups |
| Diameter (mm) | 64 | 62.9 |
| Closest Focus (m) | 0.2 | 0.4 |
| Front Element Rotation | - | - |
| Length (mm) | 23.5 | 9.2 |
| Focus Details | - | AF or MF |
| Magnification Ratio (x) | 0.19 | 0.13 |
Help · Contact us · Disclaimer · Contributors · Developers · Donate