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The AF assist infrared light can be disabled.
Custom settings (C-26 on page 95)
AF Assist Infrared Light
The AF assist infrared light is emitted only when the focus mode is set to “S” (single
focus mode).
Effective range of the AF assist infrared light is limited. It does not reach distant
subjects.
Range: 9m/29.5 ft. (using 80 mm f/2.8 lens under our test conditions)
When using a lens hood or a bellows lens hood (sold as an optional accessory) that
may interfere the assist light, set focus before mounting the hood.
When the subject is dark or the low-key and the
camera fails to auto-focus, a red lamp may light
on the front of the camera when the shutter re-
lease button is half-pressed. This is a light that
assists the camera’s auto focus function.
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2. Lock the focus.
When the focus mark in the viewfinder LCD is
lit, press the AF lock button on the front of the
camera to lock the focus.
When the focus mode is set at “S” (single fo-
cus mode) and the
focus mark is lit, hold
the shutter release button halfway down to lock
the focus.
Using the Focus Lock Function
3. Adjust the composition.
With the shutter release button half-pressed, slide
the camera to achieve the desired composition,
and release the shutter.
1. Set the focus mode selector
lever to “S” or “C.”
Put the subject in the focus frame and half-
press the shutter release button.
If the object that you want to focus on is not in the focus frame , the camera focuses
on the background at the center. In such cases use the focus lock function to lock the
focus before releasing the shutter.
1. Assignment of the AEL and AFL buttons can be swapped.
Custom settings (C-15 on page 94).
2. You can set the camera so that when the AFL button is pressed, AF is
activated and AF lock is performed
Custom settings (C-19 on page 95)