I was in the middle of a job this afternoon.

I remember quickly deleting an image and then immediately changing the aperature (I always shoot on manual).

I then fired the shutter and nothing happened. I could change the aperature and shutter speed, and I could view images on the screen. But, the shutter would not fire.

So, I swithed off the camera. Strangely, the information display did not disappear from the screen. I switched on the camera again. Still no shutter firing.

So, I switched off the camara (the display was still visible) and removed the battery. After reinserting it, the camera worked fine.

Anyone ever had this problem?

Thanks.


D.

ps. The battery was/is almost fully charged

Yep.

I've had a number of failures that were quickly fixed by popping out the battery. (Including one that sounds identical to your failure. I also liked the one where it couldn't pop up the flash until I pulled the battery.)

I have too, and the battery always works. So far, nothing bad has stayed permanently so I can't tell you much other than that you are not alone.

I have had my 20D become non-responsive like that also... popping the battery out... counting to 5 and putting it back in seems to fix.

I'd say after a year of owning the 20D, I've had this sort of thing happen at least 2, maybe 3 times.

I cannot recall if it has happened since I've gotten the latest firmware update (version 2.0.3)

I'd the same event with my 20D, but also with my cell phone a P910 by Sony Ericsson. When I had a Palm, it was the same. And with Windows, isn't it the same PC owners ? (I 'm a Mac user)