You will need to make a test bracket first. I used a piece of 2 inch wide aluminum from the hardware store. It is 1/8 of an inch thick and 1 foot long. They sell it in 3 foot lengths for about $5.00 so you will have plenty. Bend the bracket in half. Use a square, it has to be a perfect 90 degree bend. You will need to drill a round 1/4 inch hole on one side of the bracket to mount the camera. The other hole is more complicated, it has to be a long slotted hole. I used a Dremmel tool to cut the hole.