With advanced codecs internal 10-bit 4:2:2 sampling recording modes , ’ absolute beast professional video.It still shoots stills , well , price point £3,799 , simply worth unless video main focus.Stills shooters get much functionality kind money elsewhere.Star turn : Back-illuminated sensor At heart Sony A7S III redesigned , Exmor-R sensor back-illuminated structure.This allows camera deliver kinds faster-than-ever readout speeds make high-quality video options possible.It also enables A7S III capture images exceptionally high quality high ISO settings , expanding utility low light.Noise control greatly improved , image clarity across board.According Sony , sensor combination new BIONZ XR processor enables A7S III achieve wide dynamic range – approximately 14 stops stills , 15 stops video .