I'm a noob to this forum but I've been lurking for a little bit as I am just picking up photography. But when I was cleaning the sensor on the 30D tonight, I was interupted and called out to do some things around the house and then left for dinner. Before I left, I did cap the body but forgot to turn off the camera to put the camera out of sensor cleaning mode. The camera was left like this for a few hours until I heard the camera beeping (running out of battery) and then I discovered that I forgot the camera was in sensor cleaning mode.
Is this at all bad for the camera? I do not think it should affect anything as I did put the cap back on, but am I wrong? Is there any possible damage to the camera?