Pentax K-5 Operating Manual page 181

Recording Movies
1 Set the mode dial to p_.
Live View for movie recording is
displayed.
Sound
Recordable Time
Shake Reduction
Press and hold OK
button "1
OK button "1
Available operations
Rear e-dial (',,,_,,,') Changes the aperture value when [Movie Aperture
Control] is set to [Fixed]. (default setting)
(_ button Sets the aperture value to obtain a proper exposure.
(default setting)
Returns the position of the display area to the center
(during enlarged view).
[] button + Performs EV compensation (up to +2 EV).
Rear e-dial (-,,I_,,,-)
INFO button Enlarges the image.
2, 4, or 6 times original size (when the focus mode is
AF)
2, 4, 6, 8 or 10 times original size (when the focus
mode is MF)
Switches the function of the four-way controller
(A • • 1_) to Change AF point or direct key operation.
Returns the position of the AF point to the center
(when Change AF point is enabled).