Canon EOS 1 Instruction Manual - Page 31

Focus Lock, Press the shutter button completely

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Selecting the Five Focusing Points ● Focus Lock When you want to compose a scene with the main subject positioned out of the zone covered by the five focusing points, follow the procedure below to first lock the focus on the subject before composing the scene and taking the picture. • The focus lock function is available only in One-shot AF mode. (Refer to "2. Selecting the AF Mode" on page 32.) 1 Cover the subject with the selected focusing point and press the shutter button halfway to focus the subject. 2 Keeping the shutter pressed halfway, recompose the picture as desired. 3 Press the shutter button completely to take the picture. The exposure settings are determined when the subject is focused. If the subject brightness changes after you lock the focus, the subject may not be properly exposed. For information on different types of metering, refer to page 37. Custom Function (Refer to pages 84-85) This custom function lets you lock the exposure with the shutter button instead of the AE lock button ( ). Pressing the AE lock button activates autofocusing. 31

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●
Focus Lock
When you want to compose a scene with the main subject positioned out
of the zone covered by the five focusing points, follow the procedure
below to first lock the focus on the subject before composing the scene
and taking the picture.
•
The focus lock function is available only in One-shot AF mode.
(Refer to “2.
Selecting the AF Mode” on page 32.)
31
Selecting the Five Focusing Points
1
Cover the subject with the selected
focusing point and press the shutter
button halfway to focus the subject.
2
Keeping the shutter pressed
halfway,
recompose the picture as
desired.
3
Press the shutter button completely
to take the picture.
The exposure settings are determined when the subject is focused. If the subject bright-
ness changes after you lock the focus, the subject may not be properly exposed. For infor-
mation on different types of metering, refer to page 37.
This custom function lets you lock the
exposure with the shutter button instead
of the AE lock button (
). Pressing the
AE lock button activates autofocusing.
Custom Function
(Refer to pages 84–85)