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Sony XDCAM EX Pro Handhelds
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Old April 8th, 2008, 10:16 AM   #1
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Pulsating Zooms

I'm shooting 1920x1080x24p with a 1/48th shutter. On all my zooms (done at moderated speed in bright light) I am getting a "pulsating" effect. Why is this and what is the cure? The zoom speed is smooth and consistent it is the light intensity that pulsates.

Should I be using a faster shutter for pans and zooms?
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Old April 8th, 2008, 11:00 AM   #2
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Do you notice only a pulsating of brightness - or of focus as well?
Does this ocuur only in progressive mode and when auto focus is switched on?
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Old April 8th, 2008, 12:10 PM   #3
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Michael, could you post a small video example?
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Old April 8th, 2008, 12:18 PM   #4
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Steven, I don't own a EX1 yet.
But the Canon A1 shows focus pulsing when zooming with AF switched on, especially in progressive mode.
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Old April 8th, 2008, 12:44 PM   #5
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Mike, that question was to the original Mike who posted the issue. ;)
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Old April 8th, 2008, 01:25 PM   #6
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Oops, sorry.
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Old April 8th, 2008, 07:34 PM   #7
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Quote:
Originally Posted by Michael Mann View Post
Do you notice only a pulsating of brightness - or of focus as well?
Does this ocuur only in progressive mode and when auto focus is switched on?
Michael et all:

With a closer look it is
A) A lateral fast shaking - back and forth. No change in brightness or focus
B) It only happens at the left and right 1/3rd of the image. The center third is still and normal.

As I described the problem wrong originally let me start a new thread and forget this one.

Last edited by Michael H. Stevens; April 8th, 2008 at 09:54 PM.
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