Digital BW, The Print

Mike wrote:

>... My understanding is that MIS variable mix
>inks don't work with PS7. ...

To be honest, I haven't even bothered to load my PS 7 yet.  It's been
sitting on the floor for months.  At some point I'll analyze where this
concern is coming from.

The posts I've read on the subject indicated to me that the grayscale to RGB
mapping functions have been changed slightly.  That is, when the mode of the
image is changed, different RGB color spaces -- in particular sRGB and Adobe
RGB (1998) -- do slightly different translations.  In both the resulting
file will have R=G=B for each value, but the shadow density values are
different.  Adobe RGB is relatively linear; sRGB compresses the shadow
tones.  This is also where PS 7 appears to have altered things slightly.  I
assume that R=G=B still.

If these assumptions are correct, there will be a slight difference in the
density of the shadows -- more or less contrast -- but the same dmax.  If
this is all correct, the differences will be slight.

Paul
http://www.PaulRoark.com