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Re: [OM] T400CN and Filters

Subject: Re: [OM] T400CN and Filters
From: "Ian A. Nichols" <I.A.Nichols@xxxxxxxxxxxxx>
Date: Mon, 26 Feb 2001 16:22:09 +0000 (GMT)

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.

-- 
________________________________________________________________________
*             |                                                        |
|  /  | |/-\  |                      Ian A. Nichols                    |
| |   | |   | |             http://www.chm.bris.ac.uk/~cpian/          |
|  \-/| |  /  |                  i.a.nichols@xxxxxxxxxx                |
|             *                    iann@xxxxxxxxxxxxx                  |
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