Canon EOS-1D Mark IV - Manual (Page 115)

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Use AE lock when the area of focus is to be different from the exposure
metering area or when you want to take muitipie shots at the same
exposure setting. Press the <■)(■> button to iock the exposure, then
recompose and take the shot. This is cailed AE iock. It is effective for
backiit subjects.
Focus the subject.
• Press the shutter button halfway.
► The exposure setting wiii be displayed.
Press the <■)(■> button. ((56)
► The <■)(■> icon wiii iight in the
viewfinder and the exposure setting
wiii be iocked (AE lock).
• Each time you press the <-X-> button,
it iocks the current auto exposure
setting.
Recompose and take the picture.
• The exposure ievei indicator on the
right of the viewfinder wiii show the
AE lock exposure level and the
current exposure level in real-time.
• If you want to maintain the AE lock
while taking more shots, hold down
the < •)(■ > button and press the shutter
button to take another shot.
^ AE Lock -
AE Lock Effects
Metering
Mode
(p.104)
AF Point Selection Method (p.97)
Automatic Selection Manual Selection
cc*
AE lock is applied at the AF
point that achieved focus.
AE lock is applied at the
selected AF point
GaCOCD AE lock is applied at the center AF point.
' When the lens' focus mode switch is set to
<MF>,
AE lock Is applied at the
center AF point.
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