Canon frequently improves the autofocus logic. As of late 2023 and into 2025, ensure you are running . Later updates improved the communication with RF lenses (via the EF-EOS R adapter) and refined the Dual Pixel AF responsiveness for third-party lenses like Sigma Art and Tamron SP series.
One of the most significant upgrades in this model was the inclusion of Dual Pixel CMOS AF. This technology allows for smooth, fast phase-detection autofocus when using Live View or shooting video. It effectively turns the rear LCD into a responsive focusing tool, similar to a modern mirrorless camera.
💡
To get the most out of your camera, you must understand the different AF modes available. One-Shot AF is perfect for stationary subjects like portraits or landscapes, locking focus once the shutter is pressed halfway. AI Servo AF is designed for moving subjects, constantly tracking focus as long as you hold the button. AI Focus AF is a hybrid mode that switches from One-Shot to AI Servo if it detects subject movement.
For photographers who want the ultimate level of control, back-button focusing is a game-changer. By reassigning the focus function from the shutter button to the AF-ON button on the back of the camera, you separate the act of focusing from the act of taking the picture. This allows you to focus once and recompose without the camera trying to refocus when you press the shutter.
Press the AF Point Selection button (top right of the rear dial) to cycle through modes: