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Can I disable flash fire during auto focus?

post #1 of 29
Thread Starter 
Sometimes I want to snap a picture quickly so I set the camera to Auto focus and go to take the picture and as it focuses, the flash fires. I understand the concept behind it but is there anyway around it? I have a Canon T3. Maybe a cheap aftermarket flash would help so it would only have to do it once? Thanks
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post #2 of 29
I know on my nikon if I put my camera in auto mode, it will fire the flash automatically. But if I have my camera in manual mode, it will only fire the falsh if I turn it on. So maybe try putting it in manual mode.
post #3 of 29
Thread Starter 
I know if I go to manual focus It won't do it, but on manual with Auto focus it still flash fires.
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post #4 of 29
If you're talking about pre-flash, then yes you should be able to disable it. It may be a custom function item. I'll try to look it up next time I'm at a pc. It's used as focus assist.
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post #5 of 29
you can disable the AF assist flash, but it will not focus properly.
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post #6 of 29
Quote:
Originally Posted by mz-n10 View Post

you can disable the AF assist flash, but it will not focus properly.

It'll still autofocus, its an 'assist' - just means that focus will be more difficult without it, so you'll have a higher chance of not being able to focus. Focus will still ultimately be possible.
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post #7 of 29
So let me get this right,

Manual mode? And you focus, and then your flash pops up and fires before it grabs focus?

Sounds like a busted Canon bro. If your flash it auto popping up during focus in manual mode, it has some crossed wires.
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post #8 of 29
It could also simply be that his hand is probably hitting the flash pop-up while he's holding the camera to focus. Believe it or not, was happening to me occasionally with my 580EX ii - I have it set up that when it does a test flash it does a modeling flash, which basically means it fires rapidly for a second. It freaked me out the first time I did it when I hit the DOF Preview button by accident. I still do it occasionally actually, true story.
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post #9 of 29
Quote:
Originally Posted by MistaBernie View Post

It'll still autofocus, its an 'assist' - just means that focus will be more difficult without it, so you'll have a higher chance of not being able to focus. Focus will still ultimately be possible.

depends on the lighting conditions. if the room is near pitch black (club, event, etc), without a focus assist light the camera will not get focus.....

not having the focus assist light is one of the biggest pet peeve i have when using a 5d2......
Quote:
Originally Posted by MistaBernie View Post

It could also simply be that his hand is probably hitting the flash pop-up while he's holding the camera to focus. Believe it or not, was happening to me occasionally with my 580EX ii - I have it set up that when it does a test flash it does a modeling flash, which basically means it fires rapidly for a second. It freaked me out the first time I did it when I hit the DOF Preview button by accident. I still do it occasionally actually, true story.

love the DOF preview on the flash, who needs a flash light when you have a canon flash smile.gif
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post #10 of 29
When i said put your camera in manual mode. I didn't mean manual focus mode. I meant manual everything else. i can put my camera in manual and control the shutter speed, iso, and Fstop, but still have auto focus, it is a switch for me where I can use either manual or auto focus.
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