Canon EOS 30D Instruction Manual

Page of 200
74
The AF mode is the autofocusing operation method. Three AF modes 
are provided. One-Shot AF is suited for still subjects, while AI Servo AF 
is for moving subjects. And AI Focus AF switches from One-Shot AF to 
AI Servo AF automatically if the still subject starts moving. In the Basic 
Zone modes, the optimum AF mode is set automatically.
1
On the lens, set the focus mode 
switch to <AF>.
2
Set the Mode Dial to a Creative 
Zone mode.
3
Press the <E> button. 
(9)
4
Select the AF mode.
 
While looking at the LCD panel, turn 
the <6> dial.
X
: One-Shot AF
9
: AI Focus AF
Z
: AI Servo AF
f
 Selecting the AF ModeN
If an Extender (optional) is attached and the maximum aperture of the lens 
is f/5.6 or smaller, AF will not be possible. For details, see the Extender’s 
instruction manual.
<AF> stands for auto focus. <MF> stands for manual focus.