Need help opening battery cover on old camera?

Question

I have an old Praktica super TL camera that hasn't been used in a few years, and I can't seem to open the cover of the power source to change the battery. I found a coin that fits perfectly to unscrew it, but no matter how hard I try I can't get it to open, it just won't budge

Any advice?

Answer 1

It may be that the battery dissolved and the toxic chemistry has sealed the covers threads to the camera body threads.  Try using a slurry of baking soda and water and using a "Q-tip" to apply it around the threads and let it bubble until it quits ... If after a few attempts the cover will not unscrew, then take it to a camera repair shop and let them get the top off.  You will need a new battery for the meter.

Answer 2

Go to your local hardware store and get a can of Liquid Wrench. It's a penetrating oil that will help loosen the cap.