Boyd Ostroff |
July 17th, 2006 11:19 AM |
I think you're right about the motion blur issue Chris, but in the last part of the paragraph you seem to be confusing frame rate with shutter speed. The shutter speed is independent of the number of frames per second which are captured. In other words, you could shoot at 1/1000 sec shutter speed on either an interlaced camera at 60i or a progressive camera at 30p.
So I think you need to put aside interlaced vs. progressive to answer the question which Cal asked. There is "less information" being recorded at a high shutter speed, but not less picture data; the number of pixels is still the same and the amount of color data is the same. But there's less "temporal data." In other words, at high shutter speed you are only capturing what happens for a small portion of the 1/30 second frame. With a slower shutter speed you capture more of the time slice, and any motion will be blurred. So with a fast shutter speed there's a little gap between what happens in each frame which can make movement look odd.
Now it has nothing to do with "black, unrecorded portions of tape" though. Just the amount of time which passes between when each image was captured.
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