Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 361)

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.
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