On Mon, 26 Feb 2001, Charles Geilfuss wrote:
> Greetings All,
> Are any of the filters used with traditional B&W film (yellow, red &
> green) at all effective with T400CN film or is it's response to various
> light frequencies different from traditional B&W film? Eg.Will a red filter
> darken the sky with this film? Thanks.
>
> Charlie Geilfuss
The use of a yellow filter to darken blue skies has nothing to do with
the spectral sensitivity of the film and everything to do with the
colour of the sky - yellow and blue are complementary. So yes, the
traditional filters for B&W work will be just as effective with
chromogenic films.
--
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| / | |/-\ | Ian A. Nichols |
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