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Laura Breyers

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  1. Im looking for a camera that can do at least 200fps for under $10,000. Any resolution, genlock a plus, renting is not an option. I need a professional solution, so you can count machine vision out of the picture. Plz help, thanks!
  2. What happens when you use a blinding amount of light on a subject and underexpose the sensor? Does it create a hard contrast or balance out?
  3. The actors will be wet at the time, is the radiant heat energy so much that it will burn wet skin? How close is too close? How long did it take to cause this?
  4. Assume you are working with the most directional of all lights, xenons, and they are in 6 feet of an actor, not taking heat into account, how many kilowatts of pure light energy would it take to cause burns? Although it sounds like im trying to burn them, its quite the opposite. Im asking because ive heard xenons are powerful enough to break glass so im am a bit concerned. I suppose this could be true of most lights though, has anyone had any experiences walking away from a set with a tan?
  5. Hi, Im new to highspeed imaging and am having trouble finding out how to light for it. I am working with a machine vision camera that will be operating at 120fps, and I need to use a strobe that is sync'd to the shutter for a crisp fluid dynamic effect (think soda commerical). I can't seem to find anything like this, except for unilux and clairmont, but they are only made for film cameras. My other idea was to get a dmx strobe light and have it wired to receive sync from the camera, however the only strobe light i found that was quick enough (120fps) had a minimum flash duration of 1/125th of a second, which is too slow to produce a stop motion effect. My only other option is to shoot at a shutter speed of 1/4000th, which is what i believe to be short enough to catch rain falling on the actor at close range, though i dont have any idea how much light i would need. Please help!
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