So so sorry but what is 'ML'. Pls do not laugh, just tell me the full form. Pls.
Magic Lantern an add-on that runs alongside the original Canon firmware and brings very useful to near-essential features to the camera (raw video & histogram, 14ev dynamic range, focus stacking, focus peaking, intervalometer, unlimited bracketing, ...). It's the one reason I'm using Canon and not Nikon. See link above for their homepage, they've also got a forum with tutorials over there.