All the luck Dave! [img]images/icons/shocked.gif[/img] Are you renting a camera for the initial testing? [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img]
Howdy Dave... If your camera has a 1/4-20 hole in the bottom for a tripod mount, it should be simple to improvise a solution.
Take a matching set of weaver/picatiny style rings (QRW comes to mind) they are cheap and removable without tools. Mount them to your scope tube upside down. Now take a weaver aluminum rail with a flat straight bottom and drill it with a 1/4 " drill. Clamp your base to the upside down rings in the upside down position and run your 1/4 - 20 screw through the base and into the camera. 1/8" thick memory foam will insulate the camera from some shock, and help it hold alignment. Put the foam between the camera and the upside down base. Less than 70 bucks and 1/2 an hour, problem solved. Alignment on one axis should be near perfect, adjustable on the other axis. Use layers of tape between foam and base to shim for height.
Seems an improvised set up like this was used a few years ago by some S/S to film Milosovic's Officers machine gunning people in acts of genocide. Remember though, a video camera can only take so much recoil, make sure your camera is under warranty before hooking it up to the big dog.
338-378 offered a similar solution but I'm a little hesitant to clamp onto my scope tubes with the extra weight of the camera and etc. Once I stated this to him he offered a nice rendering of a mount system using Badger rings with a "bridge" setup similat to what you describe welded to the top caps of the rings. Looks not too unlike the detachable M-16/M4 carry handle. I believe I'd open up the rings a bit so they wouldn't touch the scope.
I believe (fairly certain) I set the power to 22 for that pic and I'm not sure what the camera was set to (I don't believe it matters actually)... the house is across the street from me... about .... oops! almost told you the distance and ended the game.
The exposure height on those shingles there with the angles and all makes it a tricky one, I'll go with 98 yards to the peak using the width of them instead. Glad this is close range and not real far, probably would have missed! [img]images/icons/grin.gif[/img]
How would a Mono-Loc work with what you have for recording right now?