Auto Focus Assist Beam
nickeverett
Registered Users Posts: 74 Big grins
I have a puzzle that I can't seam to solve.
Using a Canon 580 EX II Speedlite with Canon 400D. When using the camera in an 'Auto' mode (i.e. portrait, landscape, close up, etc') the auto focus assist beam fires from my speedlite. However, when using P, Av, Tv & M the beam will not fire. Obviously I don't want to use an auto mode so what can I do to enable the assist beam on manual mode?
Using a Canon 580 EX II Speedlite with Canon 400D. When using the camera in an 'Auto' mode (i.e. portrait, landscape, close up, etc') the auto focus assist beam fires from my speedlite. However, when using P, Av, Tv & M the beam will not fire. Obviously I don't want to use an auto mode so what can I do to enable the assist beam on manual mode?
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Not sure if this is the same in Canon's system, but it might be something you can check.
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Natural selection is responsible for every living thing that exists.
D3s, D500, D5300, and way more glass than the wife knows about.
I check the AF modes as 'cab.in.boston' suggested and discovered the assist beam only fires in certain AF modes. My 400D has three modes; One Shot, AI Focus and AI Servo.
The assist beam fires in One Shot and AI Focus, but not in AI Servo.
Success! Puzzle solved.
Excellent! And what do you know... I was able to provide useful advice. This may be a first.
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Does this match with your original question, about AF assist beam and Auto vs other modes?
Neil
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Yup yup
I'm using one-shot. AF assist beam is enabled in the custom functions of both the flash and the camera (5dmkii).
I tried different shooting modes - Av, Tv, P, etc.
I was able to borrow a friend's 580exii, and it works!
So... can the LED bulb burn out?
thanks,
teresa
First thing I would want to find out is if the 580 settings can be reset to factory default. I have one myself but must admit I don't know if that is possible or how to do it.
good luck,
Nick.
Nick.
my equipment: Canon 5D2, 7D, full list here
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The AF-Assist is illuminated from an LED, so it's not too likely that it has burned out but, like everything electronic, it could have a broken solder connection or a bad drive circuit, or ...
Since the other flash works that would seem to rule out your camera as the fault. Please do remove the batteries from the 580EX and then turn the unit on and leave it for a couple of hours. That should force the unit back to factory defaults.
Clean the contacts on the flash's foot.
Turn the unit off and reinstall the batteries. Test again.
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