Canon MARK IV Digital Camera User Manual


 
95
E: Selecting the AF Mode
Suited for still subjects. When you
press the shutter button halfway, the
camera will focus only once.
When focus is achieved, the AF point
which achieved focus will flash in red,
and the focus confirmation light <o>
in the viewfinder will also light.
With evaluative metering, the
exposure setting will be set at the
same time focus is achieved.
While you hold down the shutter
button halfway, the focus will be
locked. You can then recompose the
shot if desired.
AF is also possible by pressing the
<p> button.
One-Shot AF for Still Subjects
Focus confirmation light
AF point
If focus cannot be achieved, the focus confirmation light <o> in the
viewfinder will blink. If this occurs, a picture cannot be taken even if the
shutter button is pressed completely. Recompose the picture and try to
focus again. Or see “When Autofocus Fails” (p.100).
If the [2 Beep] menu is set to [Off], the beeper will not sound when
focus is achieved (p.52).
Focus Lock
After achieving focus with One-Shot AF, you can lock the focus on a subject
and recompose the shot. This is called “focus lock.” This is convenient when
you want to focus a subject not covered by the Area AF frame.
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