Canon POWERSHOT SD750 DIGITAL ELPH User Manual page 51

To Release the AF Lock
Press the _/_1_, button.
• When shooting with the focus lock or AF lock using the LCD
monitor, setting [AiAF] to [Off] (p. 46) makes shooting easier
since the camera focuses using the center AF frame only.
• The AF lock is convenient because you can let go of the
shutter button to compose the image. Moreover, the AF
lock is still effective after the picture is taken, allowing you
to capture a second image with the same focus.
• In _,m mode the AF frame does not display.
You can set the exposure and focus separately. This is effective
when the contrast is too strong between the subject and
background or when a subject is backlit.
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To Release the AE Lock
Press the IS0 button.
• In ,,m mode, AE lock can also be set/canceled (p. 41).
• You can use the FE lock (p. 50) when using the flash.
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