9-Point Auto Focus
The EOS 30D's 9 auto focus (AF) points are positioned to provide a wide field of view for optimal focusing control, particularly with 'rule of thirds' compositions.
AF modes are selectable between:
One-Shot AF - single shot auto focus
AI Servo AF – automatic tracking of a subject approaching or receding at speeds up to 50 kph, from up to 8 metres* away
AI Focus AF – switches automatically between One-Shot AF and AI Servo AF modes based on subject movement
The EOS 30D's AF system can use selected focus points to support AF all the way to f/2.8**. It remains effective in extremely low-light conditions, with a required brightness range of only EV -0.5 to 18. *Approx. shooting distance when using an EF 300mm f/2.8L IS USM lens.
**Centre AF point sensitive to vertical lines to f/2.8.
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