Comparison of Olympus 50mm ƒ/1.8 OM Zuiko and Pentax SMC P-FA 43mm ƒ/1.9 Limited [S]ave
| Attribute |  Pentax SMC P-FA 43mm ƒ/1.9 Limited × |  Olympus 50mm ƒ/1.8 OM Zuiko × |
|---|---|---|
| Diagonal Angle of View (degree) | 53.00 | 47.00 |
| Diameter (mm) | 64 | 59 |
| Notes | Distance scale, Aperture ring, IR index. Included accessories: lens hood, soft case. Available in silver or black. | Discontinued |
| Aperture (f) | 1.90 - 22.00 | 1.80 - 16.00 |
| Type | Standard Prime | Standard Prime |
| Filter Size (mm) | 49 | 49 |
| Diaphragm Blades | 8 | 6 |
| APS Equivalent | 64.5mm | - |
| Image Circle | 35mm | Image Circle |
| Focal Length (mm) | 43.00 | 50.00 |
| Brand | Pentax | Olympus |
| Name | Pentax SMC P-FA 43mm ƒ/1.9 Limited | Olympus 50mm ƒ/1.8 OM Zuiko |
| Weight (g) | 155 | 170 |
| 35mm Equivalent | - | 50mm |
| Lens Construction | 7 elements in 6 groups | 6 elements in 4 groups |
| Focus Details | Dedicated AF/MF | - |
| Length (mm) | 27 | 31 |
| Magnification Ratio (x) | 0.12 | - |
| Closest Focus (m) | 0.45 | 0.45 |
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