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-   Canon XL and GL Series DV Camcorders (https://www.dvinfo.net/forum/canon-xl-gl-series-dv-camcorders/)
-   -   Weird moire problem with XL2 (https://www.dvinfo.net/forum/canon-xl-gl-series-dv-camcorders/44255-weird-moire-problem-xl2.html)

Thinh Le May 8th, 2005 05:51 PM

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?

Boyd Ostroff May 8th, 2005 06:20 PM

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

Thinh Le May 8th, 2005 06:43 PM

thanks Boyd. the links make me feel a little better about the camera.

Mark Sasahara May 8th, 2005 10:01 PM

"Interline Jitter" is a problem with MiniDV. Comes with the territory and 1/3 inch chips.


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