Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 565)

Note
Lines indicating the image area are shown on RAW images captured with [ :
Cropping/aspect ratio ] set to [ 1:1 (aspect ratio) ], [ 4:3 (aspect ratio) ], or [ 16:9
(aspect ratio) ] ( ).
If the search conditions are set with [ : Set image search conditions ] ( ), only
the filtered images will be displayed.
When played back, images captured with [
: Add cropping information ] set to
an option other than [ Disable ] ( ) are displayed with lines indicating the image
area.
565