Let's cut to the chase here. What I'm getting from this discussion
is that blooming and banding are both caused by demosaicing
algorithms used by the camera while moving the image data off the
sensor. Because the D200 is doing it in two seperate directions
and one side is getting the green channel that catches different
light frequencies than the opposite side that is getting the
alternating red and blue channels -- that's what causes short
banding. If I understand this correctly than it makes sense to me
(although it's all technically over my head).
Now, regarding the blooming versus banding issue. Blooming is the
same issue only because the blown color channels are all being read
in the same direction, so they bloom instead of band (all the
"bleeding" goes in one direction). So, my question to Sergio is
this: have you done your lightbulb test on the D70 and has it
bloomed? If so, than it would appear that the D200, while not
perfect, is an improvement.
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http://imageevent.com/tonybeach