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Canon XL and GL Series DV Camcorders
Canon XL2 / XL1S / XL1 and GL2 / XM2 / GL1 / XM1.

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Old May 8th, 2005, 05:51 PM   #1
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Join Date: May 2005
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Weird moire problem with XL2

I havn't noticed it b/4 but I just filmed a test footage (24p & 60i) and noticed a SEVERE moire problem with both settings when a pattern such as a brick wall enters the frame. I never had this problem with the dvx100a. I think it's the horizontal line scan but I've tried adjusting different settings with the "sharpness", "V line" but nothing worked.

I tried to screen-capture a frame from the footage to see if the effect is still there and this is the weird part. When you view the image at 100% (photoshop), the image is perfectly fine with barely visible moire effect but when you view the image at 66.7%, the effect shows up--this is what I see when I play the footage. here's the captured image:

http://plaza.ufl.edu/thinhle/xl2/xl2sample1.jpg

I don't know if anyone has experienced the problem or maybe I'm just missing something. Any comment on how I can minimize this?
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Old May 8th, 2005, 06:20 PM   #2
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This issue has been discussed a lot in the past. A search turns up these threads and more:

http://www.dvinfo.net/conf/showthrea...ighlight=moire
http://www.dvinfo.net/conf/showthrea...ighlight=moire
http://www.dvinfo.net/conf/showthrea...ighlight=moire
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Old May 8th, 2005, 06:43 PM   #3
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thanks Boyd. the links make me feel a little better about the camera.
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Old May 8th, 2005, 10:01 PM   #4
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"Interline Jitter" is a problem with MiniDV. Comes with the territory and 1/3 inch chips.
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