The Sony α7 IV (model ILCE-7M4) is a full-frame mirrorless interchangeable-lens camera manufactured by Sony. It was announced^[1] on 21 October 2021 as the successor to the Sony α7 III. Featuring a new 34.1MP (approx. total).^[2] back-illuminated CMOS sensor inside, latest BIONZ XR™ image processor, Real-Time Eye AF tracking and 4K 60p video with Super 35mm mode^[3]