On May 24, 2005, at 7:33 AM, Bob Friesenhahn wrote:
Nope, pure speculation on my part. I agree that theater viewing
conditions are also important and 5400K is not much different than the
5300K and 5200K recommended for cinema viewing in the US and Europe
respectively. It seems that Germany prefers 5500K.
This is the weird bit. I don't think projectors in either place have
this white point. I have measured projectors from Switzerland and the
US.
Do telecines/datacines use a similar detection mechanism? My
understanding is that these usually sweep a CRT beam accross the film
to be scanned so that data is captured sequentially. This differs
from a typical "scanner" in which a CCD captures an entire line or
even the entire image at once.
telecine's have in the past used photo-multiplying tubes to collect the
light. It's my impression that this technology has been largely
super-ceded by using CCD's usually in a linear configuration (not an
array). I think its typical to still use a CRT to generate the light
that is captured by the CCD's through the film. I don't have any
first-hand knowledge of telecines - our movies start out digital!
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