The 7SM3 (official model: ILCE-7SM3) is the Sony Alpha 7S III, a full-frame mirrorless camera mainly designed for professional video creators and filmmakers. It features a 12.1-megapixel full-frame sensor optimized for superior low-light performance, fast sensor readout, and minimal rolling shutter. The camera supports 4K video recording up to 120 fps, 10-bit 4:2:2 internal recording, advanced autofocus, and excellent image stabilization, making it one of Sony’s top hybrid cinema cameras.