On/off switch

Do you folks keep your cameras on all the time or do you switch them off when down for the day? I’ve read that when you switch off it doesn’t actually cut the power. If that is the case, what is the point of the switch at all? Also, I have a classic car and it is recommended to use switches to keep the contacts from getting corroded. I was wondering wht the though was in this. Is it better to leave them on? If so, are you potentially making your switches get crappy from not being moved back and forth. I know this is true for old radios and volume knobs too.

For bodies that I do not use often, like my 7D, I switch it off but the bodies I use often or even weekly, I just leave on. Old radio tuner and volume knobs aren't really switches and work differently than a on/off switch.

I turn my bodies (60D & 80D) off and for a couple of reasons. I store in a backpack and if leave it on, any inadvertent pressure or contact with the shutter wakes the camera up. If this happens in the bag, I may find an unexpected dead battery. I also like that power cycling also does a sensor cleaning.

I like that it does a sensor clean too. You can do that through the menu system as well. I have always turned mine off when done.

Frodge wrote in post #18802218
I’ve read that when you switch off it doesn’t actually cut the power. If that is the case, what is the point of the switch at all?

The modern camera battery now often maintains current in a capacitor to drive the camera's date & clock even when turned Off, unlike many earlier cameras which had button cells to drive the clock circultry. So the 'benefit' of turning Off the camera is to drop any current draw to a minimum (the clock) rather than always spending current by monitoring the shutter button to 'wake up'

Frodge wrote in post #18802218
If that is the case, what is the point of the switch at all?

it keeps it from accidentally being woken up from sleep which would drain your battery, especially depending on how your camera is set up. I often shoot tethered so i sometimes have it set to never go to sleep. I usually remember to change it back, but not always.

I generally switch it off, but if I am out shooting for a day or weekend (without tethering) often I don't switch it off. Not a big deal either way as long as it is set to sleep after a couple of minutes.