[Rockbrother]

Most of the smaller digital cameras with housings does not take an external flash that connects to the camera (through the lens metering). In this case you have to use manual settings because the camera does not "know" that you are using a flash and you pic will be over exposed. I use a Canon A80 with ikelite flash that sync with the camera's on board flash. This setup will work with most cameras with housings and manual settings. The only problem is that the flash setup was more expensive than the camera and housing together.