LUMIX S PRO CAMERA LENS - 50mm fixed focal F1.4 L-mount lens, LEICA certified for LUMIX S Series Full-Frame L Mount mirrorless camerasLENS ELEMENTS – 13 lenses in 11 groups; 2 aspherical lenses and 3 ED (Extra-low Dispersion) lenses effectively suppress both axial chromatic aberration and chromatic aberration of magnificationLENS FOCUSING – A double focus system combines a linear motor and stepping motor to achieve sensor drive at a maximum speed of 480 fps for fast, high-precision autofocusLENS FILTER SIZE – 77mm diameter filter with an 11-blade circular aperture diaphragmRUGGED LENS DESIGN – Dust/splash*/freeze-resistant design withstands use under harsh conditions for high mobilityLUMIX S PRO 50mm F1.4 This large-aperture fixed focal length lens achieves high resolution across the entire image and provides smooth defocus gradation, making it an ideal lens for portrait and low-light.Rugged Design for Intrepid PhotographyThis lens is dust- and splash-resistant and designed for use at temperatures as low as 14 °F. It is tough enough to withstand even heavy field use.Video Support for Perfect RecordingIn addition to silent design, the lens offers both stunning autofocus and smooth aperture changes. This top-level performance allows you to record beautiful, ultra-sharp 4K video.Welcome to new possibilities: the L-MountLeica Camera, Panasonic and Sigma now offer a solution that allows ‘mix and match' of any of the three manufacturers’ APS-C and full-frame cameras with any lens from each other’s product portfolios.S-X50 Lens ConstructionThe optimized configuration has 16 lenses in 13 groups; 2 aspherical lenses and 2 ED (extra-low dispersion) lenses effectively suppress chromatic aberration and achieve high resolution.