36 Installation of The Camera
8.8 Wedge Adapter WA-1 + Quick-Release
Plate
The WA-1 can be mounted at the same position as a bridge plate. It has a
dove tail that slides into the counter part of a quick-release plate, like the
ARRI QR-HD-1. The quick-release plate has a pin at its back, which fits into
the pin receptacle at the back of the camera base.
Figure 19: ARRI QR-HD-1
8.9 Leveling Block LB-1
The leveling block LB-1 attaches to the bottom of the ALEXA back foot. It
prevents the camera from resting on a back mounted battery when a bridge
plate is attached and the camera is placed on a flat surface.
It is mounted by inserting its top lid into the pin receptacle on the end of the
shoulder arc in the camera base. Twist the knob clockwise to tighten.
Figure 20: Leveling Block LB-1