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Red light...Green Light
Paul Sutton wrote:
> Both Xenons and CRT's contain the complete visible light spectrum, but
> neither are linear. Provided the detectors have the inverse non-linearity,
> then the overall system - from photons to electrons, via the film and the
> optics - is neutral.
All,Remember that the PMT's have to work overtime to compensate for the
non-linearities in the spectral response in both the blue and red channels.
This is why your blue channel is a noise factory, the PMT's are working
overtime to regain this part of the curve.
The Xenon rich lamp exceeds the spectral output of the film as well as the line
array CCD's. This produces the full range of film colors as far upstream as
Steve Russell, care to comment more here?
Bob Festa festa at pacbell.net
Director of Telecine festa at encorevideo.com
Encore Santa Monica 310 656 7663
Thanks to Casablanca Finish (Sao Paulo) for support in 1998..
No product marketing allowed on the main TIG. Contact rob at alegria.com
951 subscribers in 36 countries on Fri Mar 13 18:50:38 PST 1998
complete information on the TIG website http://www.alegria.com/tig3/
- Green Light
- From: Paul Sutton <Paul_M_Sutton at compuserve.com>