what cold be wrong with this AE-1

[jaimeb82]

Duane Ready sells 6v lithium battery 28L, they charged me $2,70, I think they made a mistake. First of all, the battery was dying when I pressed the battery check button, so that's a good sign. It was up at to the range of f/11. It should be right at f/5.6 or at f/2.8 when battery brand new. Next step is to test a whole new role and see if problem is there. Thanks again and hopefully this will help some others with the same problem.

[John Koehrer]

The battery shouldn't have anything to do with banding.
The camera battery is needed to trip the shutter and is timed electonically. Once the shutter has been tripped and is moving, the slit width(speed) has been determined. I'd take a swag that over time the curtain has lost tension in the springs driving the curtains.

[jaimeb82]

I am in picture 12 of my test, can't wait to see results.

[Anscojohn]

Try a new battery first; and be sure to clean the contacts in the battery chamber with a pencil eraser. Then start excercising the shutter. I agree with the others it looks like a shutter curtain hanging up. Try using the camera in the warm weather and see if the problem disappears. Even so, a CLA should be the next important thing you do.

[Pumal]

The CLA is fine, but before that; put in a new battery and exercise the shutter for a good time. They seldom fail. I have 2 since they came out in the market. Never a problem