I have noticed that my 5n goes through batteries much more quickly than I did with the C3. Has anyone else noticed this? When I first got the 5n it didn't seem to be much different than the C3 in this regard but since adding the EVF I have noticed it. Of course I have the back LCD set to off and EVF works automatically with the eye sensor. I wonder if I am inadvertently turning it on while I hold it. I would think the use of the EVF would conserve battery. Odd.