Comparison of Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 and Leica 50mm ƒ/1.4 Summilux-M Asph. [S]ave
| Attribute |  Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 × |  Leica 50mm ƒ/1.4 Summilux-M Asph. × |
|---|---|---|
| Aperture (f) | 1.40 - 16.00 | 1.40 - 16.00 |
| Filter Size (mm) | 58 | 46 |
| Notes | Available SLR mounts: Canon EF-Mount (ZE), Nikon F-Mount (ZF, ZF.2), Pentax K-Mount (ZK), M42 Screw Mount (ZS). Nikon ZF.2 version includes CPU inter | Leica M-mount with 6-bit ID bar code; Built-in telescopic lens hood; Available in black (anodized aluminum) or silver (chromed brass). |
| Closest Focus (m) | 0.45 | 0.7 |
| Magnification Ratio (x) | 0.15 | 0.09 |
| Type | Standard Prime | Standard Prime |
| Focus Details | Manual focus only | Manual focus only |
| APS Equivalent | 1.5x: 77.6mm | 1.33x (M8): 68.6mm |
| Diaphragm Blades | 9 | 9 |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 51.70 | 51.60 |
| Brand | Carl-zeiss | Leica |
| Name | Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 | Leica 50mm ƒ/1.4 Summilux-M Asph. |
| Weight (g) | 330 | 335 |
| Diagonal Angle of View (degree) | 45.40 | 47.00 |
| Length (mm) | 45 | 52.5 |
| Diameter (mm) | 65 | 53.5 |
| Lens Construction | 7 elements in 6 groups | 8 elements in 5 groups |
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