I am new to this site within about the last month, trying to get up to speed for aerial mapping using a UAV, currently using ArdupilotMega with a skywalker for vertical mapping. In mounting a small camera inside the fuselage of the Skywalker, I experimented with silicon gel for vibration isolation, which appears to be promising. The current testing used a Canon SD1200 IS camera because it was available, but I would plan on using something with a larger imaging sensor in the future (http://www.rcgroups.com/forums/showthread.php?t=1351104).
The test flight in the video above used the SD1200 in video mode in order to collect a continuous record of vibration and performance, stabilization was turned off for the flight.
I am now starting on roll stabilization using Alpo's code technique. I also need to solve camera triggering, hoping that an IR trigger solution will work. Since I may move to a Sony Nex-5, I need a non CHDK canon option for triggering.
The silicon gel approach looks very effective so far, in the future I will order some gel tape with adhesive backing for a more integrated solution and to adhere the camera to the mount, somewhat like double sided foam tape, except gel. The gel is very effective for high frequency vibration if the surface area used is matched well with the weight of the object. Their may be issues with lower frequency vibration, but that is likely the case with almost any design. Any suggestions, advice, and observations are appreciated.