The Dual Handle Tray Pkg TBD13500 for Sea & Sea MDX-7D Housing (Yellow) from Beneath the Surface is an underwater photography tray system. It fits and enhances an underwater camera housing, giving you increased options for lighting, strobes and other accessories while you shoot with your camera. This package includes a TBD13500 tray base, 2 GH100 grip handles, 2 grip handle spacers 1 1/4", 2 AA100 arm adapters, 2 R3300 risers and a BB9940 bridge bar. The grip handles are yellow.
The tray serves as the base for the system. It has a long slot where the camera housing bolts through, so that the housing can be moved from the left to the right to make it more comfortable to operate the camera. All trays have a pre drilled hole for a specially-made Beneath the Surface camera lanyard to attach to a buoyancy control device / BCD to prevent camera loss. This tray is for a Sea & Sea MDX-7D DSLR Underwater Housing for the Canon EOS 7D camera.
The grip handles are made from a solid piece of aluminum bar for strength and durability and each has a comfortable rubber grip. The handles have treads at the top for mounting an arm system. The grip handle spacers go between the tray and the handles, raising the handles to the proper level to allow access to all the Sea & Sea MDX-7D housing controls.
The arm adapters are used to attach strobe arms to the grip handles, for the purpose of then attaching strobes. They sit on top of the grip handles and connect to the risers. They accept 3 different types of arms: The Beneath the Surface / BTS ball ended arms using part #BMA, the BTS flex arms using part #FA14 which bolts directly to the arm adapter by a 1/4-20 SS screw, or 'T' slot type arms manufactured by many popular brands.
The risers connect the arm adapters to the bridge bar. Each one has a hole pre drilled about 1 1/4" (3.18 cm) from the top for connecting a beach diving strap for ease of entry through the surf. The bridge bar connects the risers together to form a carry handle at the top of the camera tray assembly. It removes any flex that you may have in the handles of your assembly. The bar also has a series of 1/4-20 holes across it, giving you multiple places to mount strobe arms, focus lighting and video lighting via accessories like the ball mount adapter #BMA and the cold shoe mount #CSM.