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-   Canon GL Series DV Camcorders (https://www.dvinfo.net/forum/canon-gl-series-dv-camcorders/)
-   -   Colour bleed (https://www.dvinfo.net/forum/canon-gl-series-dv-camcorders/7866-colour-bleed.html)

Cosmin Rotaru August 5th, 2004 08:25 AM

the same problem here - XM2 user (just wanted to add me to the list...)

Did someone tried to solve that in post? Maybe in Vegas? (as I use that!) :)

David Deehan August 5th, 2004 04:50 PM

Cosmin,

So you suffer the dreaded colour bleed (chroma shift) problem as well. I’m surprised there haven’t been many more XM2 users adding their names to the list. Did you see my recent thread at:

http://www.dvinfo.net/conf/showthrea...threadid=29688

This thread describes another aspect of the chroma shift problem. I had originally thought it was some type of chromatic aberration but Andre de Clerq convinced me otherwise. The thread was started in this group but was quickly moved by Ken to the Open DV Discussion group – you may have missed it.

David

Bob Harotunian August 6th, 2004 08:55 AM

Read this post with some interest and decided to look for a red on white example of bleeding with the GL2. This is not scientific, but the example I posted below does not show me any significant bleed and doesn't raise a concern from my perspective at least with the GL2 model.

http://www.beaconvideo.net/temp01.htm

Andre De Clercq August 7th, 2004 04:22 AM

Bob, this is indeed a pretty symmetrical bleed which is fully acceptable. The problem often occurs when the bleed is no longer symmetrical due to chroma shift...all the bleed occurs on one side instead of being distributed (and thus halved over the two edges) of a colored object. Playing back in NTSC(PAL) generally adds extra bleed and sometimes Y/C shift too. Some high-end TV's have CTI (color transient improve) circuits implemented which "cut" color bleed.


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