Featuring a large 20.1MP 1" stacked CMOS sensor, along with a DIGIC 8 image processor, the G7 X Mark III offers notable imaging performance characterized by high speed and low noise. The stacked sensor design, coupled with the DIGIC 8 processor, affords especially quick focusing speeds, up to 20-fps continuous shooting, and UHD 4K30p and Full HD 120p video recording. Also unique, this camera supports vertical video recording along with live streaming through YouTube, via a Canon iMAGE GATEWAY account, and the ability to use an external microphone and clean HDMI output further enhances recording quality.

The versatile 4.2x optical zoom lens covers a wide-angle to short-telephoto 24-100mm equivalent focal length range and features an f/1.8-2.8 maximum aperture along with image stabilization to benefit handheld shooting in difficult lighting conditions. The fast-maximum aperture also affords greater control over depth of field for working with selective focus.