Af Modes And Drive Modes - Canon EOS 20D Instruction Manual

AF Modes and Drive Modes

Drive modes
An image cannot be taken
unless focus is achieved.
When focus is achieved, it
is locked. With evaluative
uSingle
metering, the exposure
shooting
setting is also locked. (The
exposure setting is stored
in memory before the shot
is taken.)
The above conditions
apply during continuous
i Continuous
shooting. During
shooting continuous shooting
(max. 5 shots/sec.),
focusing is not executed.
AE lock
AF point selection
Metering mode
q Evaluative
Metering*
w Partial Metering
e Centerweighted
Average Metering
* When the lens' focus mode switch is set to <MF>, AE lock is applied at the
center AF point.
Image Conversion Factor
Since the image area is
smaller than the 35mm-
format film format, the
equivalent lens focal length
will increase by 1.6x.
One-Shot AF
Automatic AF point
selection
AE lock is applied at the AF
point that achieved focus.
AE lock is applied at the center AF point.
Function Availability Table
AI Servo AF
The focus tracks the
subject movement.
The exposure is set at
the moment the
picture is taken.
The above conditions
apply during continuous
shooting. During
continuous shooting
(max. 5 shots/sec.),
focusing is executed.
(In Creative Zone modes)
AE lock is applied at the
selected AF point.
Image size
22.5 x 15.0mm (0.89 x 0.59 in)
35mm image size
36 x 24mm (1.42 x 0.95 in)
AI Focus AF
Automatically
switches
between ONE
SHOT AF and AI
Servo AF
according to the
subject status.
Manual AF point
Selection
149