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Digital BW, The Print

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Message

Vs: Vs: [Digital BW] Filters and their split channels"equivalents"

2004-04-18 by Ukko Heikkinen

How about this, Steve?

http://hort.ifas.ufl.edu/TEACH/floral/color.htm

I don't know how to put this. The "exact" complementary color is what is exactly opposite the filter color, but of course the filter affects the brightness of the "near-by" colors, too, but to a lesser extent.

You are right: "one advantage of colour capture is that the range of adjustments that can be made post  capture is significantly greater than those that can be made with B&W film.". However, the "acutance", or sharpness, of B&W films is higher than that of color films, and I believe that I have noticed that their local value contrast is better, too.

How about this:

http://www.thelightsright.com/DigitalDarkroom/Tutorials.htm

Ukko Heikkinen


----- Original Message ----- 
From: Steve Kale <stevekale@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Sunday, April 18, 2004 10:41 PM
Subject: Re: Vs: [Digital BW] Filters and their split channels"equivalents"


Ukko

Thanks for this.  I guess what I am searching for is an understanding of
what these filters do to the RGB space hitting the film plane eg more red,
less blue, little less green etc.  That is, an expression of the filter in
terms of RGB rather than ³enhances contrast² etc.  Does this make sense?

Steve 


From: "Ukko Heikkinen" <ukko.heikkinen@...>
Reply-To: DigitalBlackandWhiteThePrint@yahoogroups.com
Date: Sun, 18 Apr 2004 21:55:21 +0300
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject: Vs: [Digital BW] Filters and their split channels "equivalents"

Hello Steve

Let's start here:

http://www.tiffen.com/Filter_&_Lens_Brochure/BFILT_30_31.htm

Ukko Heikkinen











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