Canon EOS 1 Instruction Manual - Page 20

Shutter Button Operation and Autofocus

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7. Shutter Button Operation and Autofocus The shutter button has a two step construction. Press halfway (to the first step) to activate focusing and metering, and press completely (to the second step) to release the shutter and make the exposure. 1 1. Pressing Halfway 1) This activates autofocus. When the subject is focused, the correspond- ing focusing point momentarily lights red and the green in-focus indicator lights up in the viewfinder (in One- shot AF mode). • The autofocus system uses five focusing points. In-focus indicator • The focusing point does not light up in automatic focus point selection mode when the AF mode is set to AI Servo. • The in-focus indicator does not light up in AI Servo AF mode. 2) At the same time, the camera determines the shutter speed and aperture value combination (exposure value), and the results are displayed in the LCD panel and viewfinder. If you remove your finger from the shutter button, a timer operates to continuously display the exposure settings for six seconds. 20

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7. Shutter Button Operation and Autofocus
The shutter button has a two step construction. Press halfway (to the first
step) to activate focusing and metering, and press completely (to the sec-
ond step) to release the shutter and make the exposure.
1. Pressing Halfway
1) This activates autofocus. When the
subject is focused, the correspond-
ing focusing point momentarily lights
red and the green in-focus indicator
lights up in the viewfinder (in One-
shot AF mode).
• The autofocus system uses five
focusing points.
• The focusing point does not light
up in automatic focus point selec-
tion mode when the AF mode is
set to AI Servo.
• The in-focus indicator does not
light up in AI Servo AF mode.
2) At the same time, the camera deter-
mines the shutter speed and aper-
ture value combination (exposure
value), and the results are displayed
in the LCD panel and viewfinder. If
you remove your finger from the
shutter button, a timer operates to
continuously display the exposure
settings for six seconds.
In-focus indicator
1