Panasonic Lumix S Pro 85mm F1.8 L Mount LensA large-aperture medium-telephoto prime lens, the LUMIX S 85mm F1.8 enhances portrait photography with its beautiful bokeh effect. It provides smooth defocus gradation from the focus peak to the neighboring area of the image as well as smooth, round bokeh of point light source without vignetting. With its compact size and light weight of 355g, the LUMIX S 85mm F1.8 features excellent mobility. The rugged dustsplash-resistant construction withstands use under harsh conditions even at 10 degrees below zero. Dust and Splash Resistant does not guarantee that damage will not occur if this lens is subjected to prolonged direct contact with dust or water Comprising 9 elements in 8 groups, the use of 2 Extra-low Dispersion lenses effectively suppresses both axial chromatic aberration and chromatic aberration of magnification. The filter diameter is 67 mm. The len has a 9-blade circular diaphragm. The LUMIX S 85mm F1.8 also excels in video recording performance with a mechanism that suppresses focus breathing, which was a serious problem with interchangeable lenses designed for stills photography. Based on the L-Mount system for the LUMIX S Series full-frame mirrorless camera, Panasonic is going to release four F1.8 large-aperture lenses, of which this 85mm F1.8 is the first one. These four F1.8 lenses feature common size and position of control parts to provide practical advantage in use. For example, when the camera is on a gimbal when it is easy to exchange lenses quickly with minimum adjustment of any connected gears.