Overheating wasn’t much of an issue for cameras at one point. Sure, long exposures might build up some noise on CCD sensors. It did a bit with my D100 bodies for anything 4 seconds or longer. But it wasn’t a consistent problem when shooting stills. Then cameras got video, which leaves our sensors exposed and on for much longer periods of time. To the point where some cameras now are notorious for overheating.
One such camera is the Panasonic GF7. Industrial designer, Eric Strebel has been facing this problem with his GF7. He’d regularly receive an error stating “Camera overheating, please allow it to cool down”. Being an engineer, he designed a solution. In essence, that meant strapping a great big heatsink to the back of it. This video shows us how the build came together.