Re: grayscale conversion to RGB

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FDanB@aol.com
Date: 02/09/03-09:04:50 PM Z


You said in your message...

>I have heard from a few sources that using the green channel in an RGB
>scan will result in the most accurate conversion of tonal values.

Are you talking about an RGB scan of a B/W original or a color original?
For the former, it varies from scanner to scanner. Best thing is to look
at the individual channels one at a time (making sure you have
Photoshop's prefs set to NOT "show channels in color") to see which is
best both tonally and for noise. If your original were a color image,
then using Channel Mixer is the way to go. That way YOU get to call the
shots (as opposed to leaving it up to an Adobe programmer) as to how much
red, green and blue are used for your grayscale rendition.

Hope this helps!

Now it's back to the darkroom where I've been printing
pigment-over-platinum all day. The Bergger Cotton 320 paper works soooooo
well!

Dan


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