Canon 850 IS - Manual (Page 50)

48
Shooting with the AF Lock
The AF lock can be used in the , , , or mode.
To Release the AF Lock
Press the
/ button.
When shooting with the focus lock or AF lock using the LCD
monitor, setting [AiAF] to [Off]
(p. 46) makes shooting easier
since the camera focuses using the center AF frame only.
The AF lock is convenient because you can let go of the
shutter button to compose the image. Moreover, the AF
lock is still effective after the picture is taken, allowing you
to capture a second image with the same focus.
In
mode the AF frame does not display.
1
Turn on the LCD monitor.
2
Aim the camera so that an object at the
same focal distance as the main subject is
centered in the AF frame.
3
Press the shutter button halfway and press
the / button.
The icon will display and the lower indicator will light yellow.
4 Re-aim the camera to compose the shot as
desired and shoot.