Wingtip Camera-Page 2
Adjusting slot in one bracket arm was cut on the Hegner Jig Saw after stop holes had been drilled at each end of the slot. A regular wood cutting blade cut through the soft aluminum with no trouble.
The camera holder shown on page 1 was cut from sheet metal similarily with two exceptions:

1) Metal was rubber cemented to a piece of 1/4" thick plywood to stiffen it.
2) A paper pattern was rubber cemented to the sheetmetal.
Bending the sheet metal into right angled brackets is done easily with 3/8" dowel held in place by two V-blocks and clamps.  Note that the dowel is angled to compensate for the wing's angle of attack allowing the camera to be level with the horizon.  No calculations, just eyeballing is close enough.
Finger pressure alone is all that was needed to form the metal to make the bend.  The "dowel method" automatically provided for a bend radius to avoid cracking the aluminum.
The completely assembled unit is now ready to be mounted on the airplane.  Two strips of foam weatherstripping are evident on the long bracket arm.  Weatherstripping on the shorter arms (with holes) is yet to be applied.

The weatherstripping helps reduce transmitted vibration.

A standard camera squeeze bulb with hose and shutter fitting was purchased at a camera store and fitted to the camera so the camera could be triggered remotely.  Extending the flash arm and the ensuing flash is my signal that I DID take a photo.
Camera mounted on right wingtip and aimed slightly forward.  It can rotate 360 degrees about a vertical axis if desired.