On Mon, 26 May 2003 08:16:03 GMT, Chris O'Donnell
<no.spam@for.me.org> wrote:
>I recently bought a Canon XM2 (PAL version of GL2)
camcorder.
>I'm quite dissappointed about the image quality.
>Red colors become striped and bleeds very badly.
>Some frame captures showing the problem can be found
here:
>
>http://www.jannensaluuna.com/xm2/
>
>Anybody else noticed this? It this a common problem
>with all Canon cams?
"D25" digital video does have some image
limitations
and problems, and some cameras add to these with some
problems of their own... (see
www.David-Ruether-Photography.com/vid_pict_characts.htm). In the
examples you show, I would expect the opposite-color
blending (see the color-bars sample at the URL above,
though NTSC and PAL DV handle color differently) since
the chroma resolution is lower than the luminance
resolution in D25 for both) - and most consumer cameras
"bloom" some with red (which reduces red detail
and
causes red to "spill") and in extreme cases, red
will
show "banding" and more noise than other colors
(reducing color level and overall exposure helps),
though the banding you show is unexpected, and I don't
know its cause...