The first BumperCam, an ancient Kodak bolted to the rear bumper of a LeMons Volvo, took good photos but its large size made it vulnerable to crash damage. Not so with BumperCam II, survivor of three punishing races!
After BumperCam I got knocked into the weeds at Buttonwillow, I started researching other means of getting a timelapse still camera on a race car without spending big bucks. When I discovered the magic of CHDK, I knew I had the solution. CHDK, also known as the Canon Hack Development Kit, temporarily replaces the firmware on many Canon digital cameras and allows the user to do damn near anything with the camera. I picked up a remanufactured Canon A460, loaded CHDK on the memory card, spent about 7 minutes turning a hardware-store L-bracket into a camera mount (using triple-redundant mounting for the camera: Velcro, screw into the tripod hole, and a zip-tie), and BumperCam II was born. In the photo above, we see BumperCam II mounted on the Tunachuckers Volvo Amazon at LeMons South Fall '09; technically, it's a PillarCam with this mounting location, but the BumperCam name has stuck.
For the LeMons Phoenix race last weekend, the Eyesore Racing crew volunteered to mount BumperCam II on the trunklid of their Miata, modifying the bracket as needed; on the second day, the E30-driving B-Team bolted the BumperCam to their car's trunk. TrunkLidCam!