7 Elements in 6 Groups. Ideal Aperture with 13 Diaphragm Blades
F1.1 Large Aperture:Excellent color balance and optimization,provides a smooth, natural transition between the focus object and the bokeh in the image. The ideal depth of field and fascinating background blur will be achieved with a wide aperture.
Superior Optical Design：Adopting high refractive glasses of index 1.9 in the 6 groups of 7 elements lens structure based on the sonnar formula, the light transmittance is greatly improved in 7artisans 50mm F1.1 lens. This lens design ensures distortion-free images with appropriate brightness, superb resolution and color rendition.
Multi-layer of High Permeability Optical Coating:With seven layers high quality optical coating on the lens, the flare, ghost and chromatic aberration are greatly minimized in images. The image quality is greatly improved.
Compability: Leica M2 M3 M4-2 M5 M6 M7 M8 M9 M10 M4P M9p M240 M240P ME M262 M-M CL