How to Disable automatic gain control on a Canon T2i/550D 7D
AGC ruining your takes? This Canon EOS DSLR user's guide offers a trick for disabling it entirely. It's simpler than you might think. So simple, in fact, that this clip can present a complete overview of the process in just over 5 minutes' time. For more information, and to get started disabling auto gain control on your own Canon t2i/550D or 7D camera, take a look.