The plastic strip at back of the tray prevents housing rotation. The tray adds enough weight to offset the buoyancy of these housings, and includes a screw to attach to the tripod... more
The plastic strip at back of the tray prevents housing rotation. The tray adds enough weight to offset the buoyancy of these housings, and includes a screw to attach to the tripod mounting hole on the housing bottom. Most housings can be opened and closed without removing from the tray.
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