Compatible with Panasonic Lumix Sigma L cameras S1H S1 S5 S5 Mark II S1R S9 SL SL2 FP FPL Wide aperture of f1.8 with 9 diaphragm blades, designed to produce super smooth round blur effect (bokeh) Support AF, electronic aperture adjustment and EXIF information transmission Equipped with STM stepping motor, the lens will bring you experience of silent and smooth focusing; Features micro USB firmware upgrade interface, enables you to upgrade the lens online Standard 85mm full frame lens for portrait, subject, architecture and landscape photography Lens hood can reduce the influence of stray light and back light effectively, and prevent disturbance from rain, snow and ashes.