Comparison of Nikon 55mm ƒ/2.8 AIS Micro-Nikkor and Sony SAL-50M28 50mm f/2.8 Macro [S]ave
| Attribute |  Sony SAL-50M28 50mm f/2.8 Macro × |  Nikon 55mm ƒ/2.8 AIS Micro-Nikkor × |
|---|---|---|
| Closest Focus (m) | 0.2 | 0.25 |
| Magnification Ratio (x) | 1 | 0.5 |
| Focus Details | Auto Clutch; Focus Hold button; Focus Range limiter | Manual Focus Only; Close Range Correction |
| Front Element Rotation | - | - |
| Lens Construction | 7 elements in 6 groups | 6 elements in 5 groups |
| Length (mm) | 60 | 60.9 |
| Focal Length (mm) | 50.00 | 55.00 |
| Aperture (f) | 2.80 - 32.00 | 2.80 - 32.00 |
| Brand | Sony | Nikon |
| Image Circle | 35mm | 35mm (FX) |
| Name | Sony SAL-50M28 50mm f/2.8 Macro | Nikon 55mm ƒ/2.8 AIS Micro-Nikkor |
| Weight (g) | 295 | 286 |
| Type | Standard Prime Macro | Standard Macro Prime |
| Filter Size (mm) | 55 | 52 |
| APS Equivalent | 75mm | 82.5mm |
| Notes | - | Classic Nikon F Mount; AIS / AI / NAI Metering Compatibility; Includes front and rear lens caps. |
| Diaphragm Blades | 7 | 7 |
| Diagonal Angle of View (degree) | 47.00 | 43.00 |
| Diameter (mm) | 71 | 63.5 |
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