Canon EOS Elan II EOS ELAN II Instruction Manual - Page 38

Ill. AF Modes and Metering Modes Al Servo AF This mode is suited for subjects which move sporadically. While the shutter button is pressed halfway, the camera continues to focus the subject. With predictive AF, an approaching or retreating subject can be focused. The exposure is set immediately before the picture is taken. * Predictive AF If the subject approaches or retreats from the camera at a constant speed, the camera focuses the subject continuously and predicts the position of the subject for the moment of exposure to obtain accurate focusing. Focusing Point Operation in Al Servo AF Mode Automatic Selection D Eye-Controlled Selection Al Servo AF • The center focusing point focuses the subject first. • If the subject then moves to another focusing point, focusing continues with predictive AF • Eye-Controlled Servo AF takes effect. By following the moving subject with your eye, focusing continues with predictive AF. See page 48. Manual Selection • Predictive AF continues with only the selected focusing point. When the focusing point selection is automatic and the center focusing point first focuses the subject, the camera switches to Al Servo AF if the subject moves to another focusing point in the viewfinder during autofocusing. u • In this AF mode, the in-focus indicator does not light and the beeper does not sound even when focus is achieved. • A blinking in-focus indicator in the viewfinder indicates that focus has not been achieved. • In this AF mode, the focus cannot be locked. 38