Pentax Optio A40 Operating Manual page 104

Setting the Auxiliary AF Light
The auxiliary AF light is convenient when you shoot a dark subject. This
helps you to focus on the subject under the conditions that the auto focus
does not work properly.
4
Use the four-way controller (23)
to select [Aux. AF Light].
5
Use the four-way controller (45)
to select [O (On)/P (Off)].
6
Press the shutter release button
halfway.
The camera is ready for taking pictures.
4
The auxiliary AF light of this camera conforms to the safety standard
(IEC60825-1) for Class 1 LED product. Looking at the light directly
will not create safety hazard. However, do not look into the emitter
from a very short distance since you may feel dazzled.
The camera does not emit the AF light under the following
conditions.
- In Movie mode
- In Landscape mode (The AF light is available if you set Aux. AF
Light to On.)
- When Focus Mode is set to Pan Focus, Infinity or Manual Focus.
- When Focusing Area is set to Automatic tracking AF.
102
AF Setting
Focusing Area
Focus Limiter
Aux. AF Light
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