580EX II wireless freeze motion... - Page 2
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Old 02-29-2008   #11
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Default Re: 580EX II wireless freeze motion...

As noted, don't worry so much about the camera shutter speed. As long as the ambient light in the studio is low the flash is going control the exposure speed. The 580s at lowest power setting should be able to stop the motion. Here is a sample a friend shot this week that shows what the 580 can do: Water Ballon vs. Airsoft BB, Round 3 on Flickr - Photo Sharing!
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Old 02-29-2008   #12
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Default Re: 580EX II wireless freeze motion...

Going to stick my neck out with all you great people here.
I have a Canon 1DsMk2. 2 X 580EX's
Always leave the flash units in "High-speed Sync"
master flash as "A" group
slave flash as "B" group
I marked my "B" flash and it's case with white tape. So I now never have to bother checking which unit is to go on the camera.
Since the head will be moving backwards place a small object behind the head in line with the model's eye and manually focus on that point
As an idea, try second curtain synch with slow shutter. the flash will stop everything just before the curtain closes, but blurr up to that point.
keep both eyes open!
set camera to Manual..fire away.
please post finished shot. I'd love to see it
I'm not a pro, so if I'm wrong somewhere, try not to burn me


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