Digital BW, The Print

> -----Original Message-----
> From: Moreno Polloni [mailto:mp@...]
> Sent: Thursday, December 05, 2002 2:03 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] Re: Convert to B&W plugins
>
>
> > I still don't understand.  Why can't you get the exact same effect in PS
> on
> > a file that is grayscale?  All a filter does is shift/modify
> the tonality,
> > and you can easily do that in PS to a grayscale file.
>
> It's not the same thing. Shoot a Macbeth colour chart in both colour and
> B&W. When you scan the colour image in colour, and use the
> channel mixer in
> PS to convert to greyscale, you can alter the translation of tonal
> relationships between the colours, much as you can do with colour filters
> when shooting B&W film. As the channel mixer is adjusted, the grayscale
> portion of the Macbeth chart doesn't change much, whereas the tonal
> placement of colour patches can be drastically changed.

Moreno,

It may not be the "same thing" but you certainly can get the EXACT same
results in your final grayscale output.  You can do manipulation to the
grayscale data and arrive at the EXACT same resultant output as you can by
manipulating the RGB data then converting to grayscale.

Austin