The Sony A7sII Mirrorless Camera is Sony's masterpiece, a full frame body capable of stunning high-ISO performance with INTERNAL 4K recording. Based on the same body you know and love from the alpha series, this one features a 12.2 MP full-frame sensor with amazing sensitivity of up to 409600!!! Internal 4K UHD (3840x2160) recording is handled in 100 Mbps XAVC S format at 30 fps with full pixel readout at 4:2:0. IMPORTANT: If you want to shoot 4K to the internal SD card, you need one of our 300MB/s Cards. Full HD 1080p can be recorded at up to 120 fps. Sony's S-Log3 is supposed to increase dynamic range by up to 1300%. We're impressed! Sony also included their 5-axis SteadyShot image stabilization built right into the body. This system compensates 4.5 stops of camera shake. Their Fast Intelligent AF system is pulled over from the A7rII, though the smaller sensor "only" gives you 169 AF points for lightning fast AF.