Problem with the 40D built in flash

<p>Hi everyone! I decided to post this question in the PN forum before I go and pay 50 euro for asking the same at the Canon Service.<br>

I was shooting an event on Saturday with my 40D + 580EX II when the battery ran out on the flash. I took it off to reload the batteries and in the mean time take a few shots using the camera's built-in flash but it would not open. I went into the settings menu only to find that the probable cause was that the camera had registerd that the external flash is still on!<br>

Anyway, to make the story short, I finished the shooting (with the external flash) and afterward tried several times to open-close the camera and flash but the Menu Setting stayed permanently set as if the External Flash was on.<br>

Has anyone had a similar experience? Any suggestions, aside from the obvious 50 euro visit to the Canon Service?</p>

<p>Did you check the microswitch under the rail of the hot shoe?</p>

<p>What Mark said...<br>

There is a little pin that does/can get stuck so the camera thinks the flash is still mounted.</p>

<p>Mark, Peter... I'll check it the first thing when I get home and I'll tell you! Thanks guys!</p>

<p>IT WORKED! Thanks guys! Next time you're in Athens the beers on me!</p>

<p>Glad that was it, Nick. I probably won't get to Athens soon, so I'll hoist one for ya at the local pub! You do the same!</p>

<p>You bet mate! Cheers...</p>