Tearing over HD Shooting?
I'm going to guess and say you are talking about CCD sensor bloom from overexposure due to the flash.
Ways around this:
Use steady video lights and don't use flash on your still setup. Requires quite a bit of light.
CMOS sensors are generally immune from the bloom artifact. Change the HD camera into a CMOS setup.
If you're not dealing with a CCD video camera, then the above doesn't apply.
Warning: The internet is filled with one sided views. Stay objective.
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