7Artisans 50mm F/1.1 Lens for Leica M Mount
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7Artisans Lenses
The 7Artisans M50mm F1.1 lens has an optical system consisting of 7 elements in 6 groups and is based on the Sonnar formula. It includes two high refraction optical elements of index 1.9 to improve picture quality and lens portability. Our R&D process involved analysis of field curvature and image astigmatism influence on the image’s out of focus areas. Numerous corrections and improvements were made resulting in a higher quality image. Using the lens wide open at an aperture of F/1.1 delivers soft and pleasant bokeh. Stopped down to F1.4, sharpness is improved while keeping smooth out-of-focus areas. Repetitive corrections of spherical and chromatic aberration lead to precisely controlled bokeh shape, and good contrast and sharpness in the focus area of this large aperture lens.
| Focal Length | 50mm |
| Maximum Aperture | F1.1 |
| Minimum Aperture | F16 |
| Lens Construction | 6 Groups, 7 Elements |
| Minimum Focusing Distance | 0.7m |
| Frame Type | Full Frame |
| Aperture Ring | De-Clicked Aperture |
| Lens Anti-Shake | Without Anti-Shake |
| Blades Numbers | 13pcs |
| Angle of View | 46º |
| Filter Size | 55mm |
| Lens Material | Metal |
| Weight | 398g |
| Focusing Method | Manual Focusing |
