Question about Canon Speedlite 420EX TTL Flash
I have a 420EX that appears to not be firing the main flash. It will charge up and you can fire the pre-flash manually on the flash and also on my Rebel XTI. My camera will not remember the pre-flash, which is marked with an asterick that is seen in the view finder. All other functions seem to work on this flash, including range adjustments. Is there a pin on the hot-shoe where the flash will send information back to the camera? I'm wondering if this could possibly be the problem. Any help would be much appreciated. Thanks, Richard
SOURCE: xti rebel 6 mths old - flash will not pop up
I found the answer and fixed my flash. Look on http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00ODWf
This will describe how, if you have been using a speedlite alot, than the little tab under the shutter release side of the hot shoe can get bent down thus constantly pressing down (toward the bottom of the camera) the small button which deactivates the pop-up flash even when the speedlite is not attached. Just bend the tab up a little with a jewler's screwdriver, turn the camera off and on and voila!! Fixed!!! Dan describes pushing the tab down, but on the xti, the tab needs to be bent up to release the flash deactivation switch and fix the problem. Thanks to Dan D on photonet for saving me a service call.
Posted on Feb 19, 2008
SOURCE: No flash popup on my rebel XTI
I found the answer and fixed my flash. Look on http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00ODWf
This
will describe how, if you have been using a speedlite alot, than the
little tab under the shutter release side of the hot shoe can get bent
down thus constantly pressing down (toward the bottom of the camera)
the small button which deactivates the pop-up
flash even when the speedlite is not attached. Just bend the tab up a
little with a jewler's screwdriver, turn the camera off and on and
voila!! Fixed!!! Dan describes pushing the tab down, but on the xti,
the tab needs to be bent up to release the flash deactivation switch
and fix the problem. Thanks to Dan D on photonet for saving me a
service call.
Posted on Feb 19, 2008
SOURCE: flash not firing properly
Could be the metering mode you are in. Could be the subject is too far away. Could be ISO is set wrong. Could be the lens aperture can't open up enough. Could be the exposure compensation isn't set correctly. Could be FE Lock is still on and the composition has changed. Does the <flash> icon continue to blink? Then you are too far away.
Posted on Dec 06, 2008
SOURCE: I have a canon rebel
I had the same problem.
Look closely at the hotshoe. Inside it, way over to the side, under one of the tabs on the side, is a tiny metal strip. When you attach an external flash, the strip is pushed down and holds down a tiny button that deactivated the pop-up flash. The strip can get bent so that it doesn't let the button come up even when the external flash is removed.
Very gently take a fingernail or a jeweler's screwdriver and run it underneath the metal strip. I had to do it a couple of times to get mine working again, but it's working great now!
Posted on Feb 18, 2009
SOURCE: camera does not fire external flash
Also be certain that the flash is screwed onto the shoe as tightly as possible.
Posted on Feb 28, 2009
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Hi I have the same problem with my 420, the flash light turns green after power on, and recycle, but within 5 seconds it turns red, the preflash works, as well as the rang info. But when I take the picture the flash does't fire.
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