Canon EOS R6 Advanced User Guide - Page 93

A+: Fully Automatic Techniques (Scene Intelligent Auto) Recomposing the Shot Shooting Moving Subjects Scene Icons Recomposing the Shot Depending on the scene, positioning the subject toward the left or right to include a balanced background will result in a picture with better perspective. Pressing the shutter button halfway to focus on a still subject will lock the focus on that subject. Recompose the shot while keeping the shutter button pressed halfway, and then press the shutter button completely to take the picture. This is called "focus lock." 93