Staking the claim as the reference 50mm, the Summilux-SL 50mm f/1.4 ASPH. Lens from Leica promises to create phenomenal images with edge-to-edge sharpness, even wide open. Designed for Leica's full-frame SL-series of mirrorless cameras, this 50mm benefits from a new design granted by the short flange distance. It also leverages two aspherical elements and four anomalous partial dispersion elements in order to keep aberrations to an absolute minimum. The fast maximum aperture of f/1.4 furthers your imaging capabilities by creating images with a shallow depth of field and in low-light conditions.