Canon PowerShot SD870IS User Manual page 102

I
1 O0 1 Various Shooting Methods
Shooting Hard-to-Focus Subjects
(Focus Lock, AF Lock) [_[_[]
[]See Functions Available in Each Shooting Mode (p. 238).
It may be difficult to focus on the following types of subjects.
• Subjects with extremely low contrast to the surroundings
• Scenes with a mixture of near and far subjects
• Subjects with extremely bright objects at the center of the composition
• Subjects that are moving quickly
• Subjects through glass: Try to shoot as close to the glass as possible
to reduce the chances of light reflecting back off the glass.
Shooting with the Focus Lock
.....
focal distance as the main subject is centered
in the AF frame•
focus•
3 Keep the shutter button pressed halfway while
you recompose the image and press the shut-
ter button all the way to shoot the image•