Battery Tip for Fuji GF670/Bessa III
I've been running into issues with my Bessa III - batteries seeming to run out quickly, and failing quite soon after replacement. I had cleaned the contacts but the problem continued and today another new battery failed to the point that the shutter wouldn't release. Another film torn out and discarded! I bought a bunch of CR2 batteries a couple of years ago and I had assumed that their shelf life had come to its natural end. But...
I decided to look into it a little further. A voltmeter said the 'failed' CR2 3V lithium battery is actually putting out 3V, leading me to realise this is a camera problem, which is bad news as I'm not sure how I would go about getting this camera repaired. I wouldn't mind terribly if the meter didn't work and I had to use an external meter, but the shutter won't fire if the battery doesn't supply the juice. I decided to clean the contacts again, using my secret weapon for battery contacts - undiluted Kodak Stop Bath (acetic acid dissolves the crud very nicely). This time I realised there was one thing I hadn't done. I had cleaned the positive contact in the battery well, and the negative contact in the form of the tiny spring on the cap, but I had not cleaned the threads that made electrical contact between the battery cap and the camera body. So the Q-Tip of Orange Goodness was swiped around the threads on the cap and those on the body, and, lo, it came away filthy! Having dried the threads with some tissue paper, the 'dead' battery now works and the meter works and the shutter works!
So, if like me, you are finding this lovely camera has battery problems, don't forget to clean the threads on the battery cap, along with those they screw into.