Canon EOS R50 Mirrorless Camera (White) - Manual (Page 703)

Screen Brightness
1.
Select [ : Screen brightness].
2.
Make the adjustment.
Referring to the gray image, use the < >< > keys to adjust screen
brightness, then press the < > button. Check the effect on the
screen.
Note
To check the image's exposure, referring to the histogram is recommended ( ).
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