Canon A20 - Manual (Page 45)

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3
Take the shot.
• Use the LCD monitor to compose close-ups
in macro mode since the parallax
phenomenon may cause images composed
with the optical viewfinder to be off-center.
• The exposure may not be optimal when the
flash is used in macro mode in the range of
16 to 26 cm (6.3 to 10.2 in.).
: Available
: Available, but cannot be changed after taking
the first shot
_ : Not available
_
Using the Focus Lock
The following types of subject may not be
suited to autofocus photography. Use the
focus lock in these situations.
• Subjects with extremely low contrast to
the surroundings
• 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.
How to Use the Focus Lock
1
Aim the camera so that a subject at
the same focal distance as the main
subject is centered in the brackets in
the optical viewfinder.