Pentax K-5 Operating Manual page 154

7
Point the remote control unit
towards the remote control
receiver on the front or back of
the camera and press the shutter
release button on the remote
control.
The operating distance of the remote
control unit is approximately 4 m from the
front of the camera and approximately 2
m from the back of the camera.
After a picture is taken, the self-timer
lamp lights for 2 seconds and then returns
to blinking.
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