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Techniques for Independent Production
The challenges of creating Digital Cinema and other narrative forms.


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Old October 30th, 2002, 03:49 PM   #31
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yeah. any strong contrast edge, perpendicular to the line of camera travel will cause the problem...again, it is worse on 24 FPS film and 24p video, but the key is to know your tools, and avoid the cause of the problem if it's a bother to you. Kinda like not pointing your camera into the sun when you're shooting your girlfriend dancing on the beach, or not shooting tight grid patterns on video --they'll moire-- where as film wouldn't.

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Old October 30th, 2002, 06:08 PM   #32
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Regarding the strobe effect from frame/progressive mode, a lot of otherwise good footage can be rescued by the use of gaussian blur. For example, Premiere, AvidDV etc has horizontal and vertical clamped versions of guassian blur for exacly this purpose, also there is motion blur which also can be applied orthogonally depending upon whether your panning/trucking or tilting the camera. Another useful tool is the curves function which can do amazing things to help with contrasty scenes which are part reason for the strobing.

However earlier comments on good camera operation are the key to avoiding this ratchet motion as I call it, trouble is getting those ultra smooth and slow and weighted camera movements costs a lot of lula.

I found setting custom preset shapness to default and adding gaussian blur value 1.0 (premiere) is about the same as setting custom preset sharpness to the softest setting - but has the advantage of some noise reduction.

just my 2 zorkmids worth...
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