Comparison of Leica 50mm ƒ/1.4 Summilux-M Asph. and Nikon 50mm f/1.2 AIS Nikkor [S]ave
| Attribute |  Leica 50mm ƒ/1.4 Summilux-M Asph. × |  Nikon 50mm f/1.2 AIS Nikkor × |
|---|---|---|
| Aperture (f) | 1.40 - 16.00 | 1.20 - 16.00 |
| Filter Size (mm) | 46 | 52 |
| Notes | Leica M-mount with 6-bit ID bar code; Built-in telescopic lens hood; Available in black (anodized aluminum) or silver (chromed brass). | Classic Nikon F Mount; AIS / AI / NAI Metering Compatibility; Includes front and rear lens caps. |
| Closest Focus (m) | 0.7 | 0.5 |
| Magnification Ratio (x) | 0.09 | 0.13 |
| Type | Standard Prime | Standard Prime |
| Focus Details | Manual focus only | Manual Focus Only |
| APS Equivalent | 1.33x (M8): 68.6mm | 75mm |
| Diaphragm Blades | 9 | 9 |
| Image Circle | 35mm | 35mm (FX) |
| Focal Length (mm) | 51.60 | 50.00 |
| Brand | Leica | Nikon |
| Name | Leica 50mm ƒ/1.4 Summilux-M Asph. | Nikon 50mm f/1.2 AIS Nikkor |
| Weight (g) | 335 | 359 |
| Diagonal Angle of View (degree) | 47.00 | 46.00 |
| Length (mm) | 52.5 | 48.3 |
| Diameter (mm) | 53.5 | 68.6 |
| Lens Construction | 8 elements in 5 groups | 7 elements in 6 groups |
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