I had my 40D in my bike bag and ran back in the house to grab my sunglasses and my bike tipped over. I had to shoot a portrait and I could only get it to fire two times. Later that same day I tried a bunch of things (removing battery, turning on an off, etc.) then I pushed the AF button and it started firing again. I probably shot 200 shots at a basketball game that night. Right at the end of the game it quit firing again.
I switched batteries the next day and it started firing again. Then I went out to do some nature photography the next morning and it wouldn't fire.
I tried removing both batteries and leaving them out over an hour. The clock reset box came on when I powered back up. But it would not fire and hasn't fired since.
It is focusing fine. Have tried multiple lenses.
Anyone have any ideas of what may be causing the problem?
In the meantime I bought a used 40D with only 172 actuations.
Any help would be appreciated. I have really enjoyed this camera!


