Pentax D-BG1 Manual De Instrucciones página 14

TAKING PICTURES WITH THE CAMERA IN THE VERTICAL POSITION
The Shutter release button, AE lock button, Tv dial and Av dial on the battery grip are used when
taking pictures with the camera in the vertical position as shown below.
Use the shutter release button when
taking pictures with the camera in the
vertical position.
12
Make sure to turn on the power before
attempting to operate any of the buttons
or dials on the battery grip. However, the
camera can still be operated even if the
power of the battery grip is turned off.