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Infrared pulse light? Anonymous
My friends and I are making a video and we thought it would be a cool effect to have a pulsing red light as an aiming device for a gun.

I've seen camera flashes do that pulse thing before so I borrowed one from the school. It's a Canon Speedlite 580EX.

There's a manual and it doesn't say how to make it light up and we don't know how to use it.
>> Blackadder !!bSWRwu/NqzQ
You mean the near infra red focus assist beam?
>> Anonymous
Well, I really don't know what it is. I just know I've seen people using the same flash and it pulsed every second or so non stop.

I just need to know the setting to enable it.
>> Blackadder !!bSWRwu/NqzQ
Are you going to try and strap this big flash to the bottom of the gun? I'm not sure what you are aiming for. Wouldn't it be easier to buy a cheap little torch?
>> Anonymous
No, no it would look ridiculous.

Think first person perspective. I'll tape a laser pointer to the side or bottom of the flash so what we'll see is a red laser beam with the flashing/pulsing red pattern from the flash, all aligned.

It's a bit more futuristic looking than one or two simple laser beams.
>> Anonymous
>>108343
Set it to slave mode and turn the thing on. It'll blink as long as it has a charge on it. It's just the ready light for when you use it as a secondary or off-camera flash.

p.s. your idea is stupid.
>> Anonymous
>>108360
Just so you know, you won't get a beam.
Just get a laser pen.
>> Anonymous
>>108332

I have a 580EX II so I hope this helps.

Press the mode button until you are in Multi. Then press the button in the middle of the wheel and the frequency should start flashing.

Turn the wheel to 1Hz and press the middle button. The number you can now change is a count . Set it either to a number of times to fire or set it to -- to have no limit.

Press the middle button again to set the power. In multi, the best you can do is 1/4 power. Make sure you have a nice battery too, because even at 1/4 you'll only get so many flashes before you'll have to wait. If you are just going for a visual effect, 1/128 is probably just fine.

You can now just either press (and hold, depending what settings you are using) the red button or just put it on a camera with an exposure time set to the length of time you need.
>> Anonymous
>>108761

I completely misread the original request. Nevermind.