580EX Auto Zoom Question

Brand new to the board. Thanks in advance for any help.

I recently bought a 580 EX Speedlite to use with by 20D. I have always used the auto zoom on it, but then yesterday I played with the manual zoom, after setting it that way accidentally.

How do I turn the auto zoom function back on? I can't seem to find the answer in the manual.

Thanks so much for any help.

Try pressing the ZOOM button located on the right hand side. The LCD display information will start blinking. Then rotate the dial counter clockwise until the "M" disappears. Press ZOOM again. That should do it.

Thank you. That worked just fine when the flahs unit was mounted on the camera. It does not seem to work when I am using the remote transmitter.

Does anyone know if the auto zoom works with the remore transmitter? Or do I need to adjust it manually?

Thanks so much.

All slave units 'auto zoom' to 24mm only, you have to set it maunal if needed.

Auto zoom when the flash is a slave is meaningless - the flash doesn't know where it is in respect to the camera. If the flash zoomed to, say, 50mm, but was much closer to the subject than the camera was, it would provide insufficient illumination.

As a result, all slaves zoom right out - if you want to zoom them in, you have to do it manually. Don't just blindly set them to the focal length of the lens - that's not the right zoom setting to use!

David

Thanks, everyone!