Canon CR-1 MARK II - Manual (Page 114)

7. Settings
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7.9.5 Loupe tab
On this rtab, the display size and magnification rate for the Loupe function of the main image is set.
Loupe tab
Item Status Function
Displayed Size
L
The image is displayed in a square with a side equal to 1/3 the
vertical length of the main screen.
M
The image is displayed in a square with a side equal to 1/4 the
vertical length of the main screen.
S
The image is displayed in a square with a side equal to 1/5 the
vertical length of the main screen.
Magnification
L The image is displayed at 3.0x size of the main image.
M The image is displayed at 2.0x size of the main image.
S The image is displayed at 1.4x size of the main image.