My new canonete ql17 is way off on the metering. Almost two stops. If I set the ISO to 160 it can get good exposures for 400. That's what I normally keep in the camera. It would be nice, though to actually fix the metering. This isn't where I want to spend the big bucks. Any ideas?

PS: of course, it's not new. Just new to me. It's actually about as old as I am and that ain't new.