Canon 1D X - Manual (Page 163)

163
Exposure Control
Select the shooting mode to suit the subject or shooting
objective. You can set the shutter speed and/or aperture
to obtain the exposure you want.
After you press the shutter button halfway and let go, the
exposure values will remain displayed in the viewfinder and
on the top LCD panel for approx. 6 sec. (9).
For the functions settable in each shooting mode, see page
354.
Set the power switch to <1>.
COP
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