For even faster positioning of your active AF Area, the all new Canon R1 adds Eye Control AF - even more advanced than the Eye Control in the EOS R3 camera. Once you calibrate the viewfinder to your eye, just look where you want to focus, and the AF Area will move there when you press the AF activation button. This new system is even robust enough to work when the user is wearing glasses. As a camera built for speed, the R1 sports a newly designed 24.2MP full-frame back-illuminated stacked sensor that offers impressively fast readout speeds and a staggering 40 fps top continuous shooting rate with an electronic shutter, along with blackout-free viewing and greatly reduced rolling shutter distortion. The back-illuminated design and new DIGIC Accelerator processing also help to produce high clarity and sharpness. The 40 fps shooting rate can be used in conjunction with Pre-Continuous Shooting, which allows the camera to continuously pre-buffer 20 frames over a 0.5-second period while half-pressing the shutter, prior to fully pressing the shutter—helping to ensure you never miss the critical moment of action. The EOS R1 also has a mechanical shutter, which supports a top continuous shooting rate of 12 fps. One of the critical pieces that enables the EOS R1 to do everything is can do is the newly developed DIGIC Accelerator front-engine processor, which complements a proven DIGIC X processor. The DIGIC Accelerator is responsible for many of the continuous shooting, subject detection and tracking, and autofocus capabilities, allowing the DIGIC X to serve fully as an image processor. The combination of these two distinct processors enables the camera to better process huge volumes of data, perform simultaneous tasks at high speeds, and contributes to the quality and accuracy of deep learning features, like In-Camera Upscaling and Neural network Noise Reduction.