Comparison of Nikon 55mm ƒ/2.8 AIS Micro-Nikkor and Pentax SMC P-D FA 50mm f/2.8 Macro [S]ave
| Attribute |  Nikon 55mm ƒ/2.8 AIS Micro-Nikkor × |  Pentax SMC P-D FA 50mm f/2.8 Macro × |
|---|---|---|
| Front Element Rotation | - | - |
| Closest Focus (m) | 0.25 | 0.2 |
| Length (mm) | 60.9 | 60 |
| Focus Details | Manual Focus Only; Close Range Correction | - |
| Diagonal Angle of View (degree) | 43.00 | 47.00 |
| Diaphragm Blades | 7 | 8 |
| Image Circle | 35mm (FX) | 35mm |
| Notes | Classic Nikon F Mount; AIS / AI / NAI Metering Compatibility; Includes front and rear lens caps. | - |
| Name | Nikon 55mm ƒ/2.8 AIS Micro-Nikkor | Pentax SMC P-D FA 50mm f/2.8 Macro |
| Brand | Nikon | Pentax |
| Weight (g) | 286 | 265 |
| Type | Standard Macro Prime | Standard Prime Macro |
| Lens Construction | 6 elements in 5 groups | 8 elements in 7 groups |
| Magnification Ratio (x) | 0.5 | 1 |
| Focal Length (mm) | 55.00 | 50.00 |
| Filter Size (mm) | 52 | 49 |
| APS Equivalent | 82.5mm | 75mm |
| Aperture (f) | 2.80 - 32.00 | 2.80 - 32.00 |
| Diameter (mm) | 63.5 | 67.5 |
Help · Contact us · Disclaimer · Contributors · Developers · Donate