Sony DNW-7/7P Operation Manual page 206

The viewfinder rotation bracket
By fitting a BKW-401 Viewfinder Rotation Bracket (not supplied), you
can rotate the viewfinder out of the way so that your right leg does not
hit the viewfinder while you are carrying the camcorder.
For more information, refer to the BKW-401 manual.
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5
Using the BKW-401 Viewfinder Rotation Bracket
5-14
Chapter 5 Setting Up the Camcorder