2010 might be a new record for resurrected threads. [Name removed] may I ask how you found this thread? Since the site redesign we've seen lots of ancient threads being replied to, and I've never been sure why. For what it's worth, I turn all my cameras off whenever I'm not actively shooting, mostly so that I don't accidentally mush the shutter release and take excess shots. Although it's not as serious as with an F5, where you can have a sad little noise from the back seat of your car that tells you you've just wasted a £5 roll of film in four and half seconds. It's more of a good idea with mirrorless, since they tend to be burning more power when they're on. Moderator Note: The reply to which you refer was Spam. The post has been removed and the user has been banned.