Fast and compact, the 50mm f/1.4 ASPH. from TTArtisan is a versatile normal-length lens for Leica M-mount rangefinder cameras. Its bright design suits working in difficult lighting conditions and also affords improved control over depth of field for working with selective focus techniques. The lens also sports an advanced optical design, which uses a series of specialized elements to reduce various aberrations and distortion in order to achieve high sharpness and accurate rendering. The lens's manual focus design permits working with subjects as close as 2.3' away and it features a 12-blade diaphragm that contributes to a smooth bokeh quality.