Digital BW, The Print

PS is probably not the cause of the color cast.  When Epson drivers a passed a file with the RGB values all equal, it can't produce a neutral print.For that matter, IP5.6 can't produce a neutral print with an RGB file where the values are equal, and the print is being made with a color profile.  I've heard this will change with IP6, but I haven't heard that from any authority.  (I'm talking about Ultrachrome inks.)
 
Tom Baker

Ken Carney <kcarney1@...> wrote:
Good questions, Antonis.  I will have to approach this in a more structured
way.  The PS color space (Adobe RGB 1998) and the Epson print space (Epson
2200 EEM MK, no color adjustment) are the same.  The files are RGB (Portra
b&w C41 film, which scans with a slight color cast, so converted to b&w in
PhotoKit).  The computer is a PC (Windows XP).   I didn't think to test both
8 and 16 bit files.  What I did was start with a 16-bit RGB scan that I had
used to make an 8-bit print, and did similar contrast adjustments with CS,
only now with 16-bit layers.  After drying, the prints (EEM) are pretty
green under daylight, but fairly neutral under tungsten or fluorescent.  I
would have thought that if the PS eyedropper tool is showing me that RGB
values are equal, and I print on the same paper with the same profile,
Photoshop would not influence the print.  But maybe not.  I'll work on it
some more and report back.

Regards,

  --Ken Carney
    www.kencarney.com 

> -----Original Message-----
> From: Antonis Ricos [mailto:antonisphoto@...] 
> Sent: Sunday, January 25, 2004 3:13 AM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] Re: Photoshop CS/B&W
> 
> Ken,
> 
> did your other settings stay the same? Color and gray spaces 
> in PS color prefs , Epson driver CM settings (print space/doc 
> space)?... If so did you test both 8 and 16bit files to see 
> if they come out any different? Is the Epson driver the same 
> as before? and are the files grayscale or RGB? Is this on a Mac or PC?
> Your question suggests that maybe CS is handling grayscale 
> printing differently, but it's worth eliminating the other 
> variables first....
> 
> Antonis
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Ken Carney" 
> <kcarney1@c...> wrote:
> > Finally got around to upgrading to PS CS this morning.  I 
> see that "b&w"
> > prints that were coming out with a magenta cast using the 
> Epson 2200 
> > driver are now coming out with a slight yellow/green cast, 
> but for all 
> > practical purposes a warm b&w print as opposed to the very 
> noticable 
> > magenta.  I'm using the Epson 2200 with Epson inks.  I'm 
> working from 
> > the same scans as with PS7, and the only difference is that 
> I'm using 
> > 16-bit layers instead of 8.  Printing is with the Epson EEM 
> MK profile 
> > and no color adjustment.  Does anyone know why this might be?
> > 
> > Regards,
> > 
> >   --Ken Carney



Please visit the Group Homepage to check the Files, and other resources as they are often being updated.

http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint

If you wish to receive no emails or just a daily digest, or you wish to unsubscribe, please edit your Membership preferences by visiting this same page.

Please follow these basic guidelines:
- As threads develop, trim off excess portions of earlier messages to keep them short.
- Good manners are required at all time. No personal attacks or flames. Hostile, aggressive or argumentative users may be removed from the membership without notice.
- Keep your posts and threads related to the group topic of digital B&W printing. Users who persistently make off-topic posts may be removed from the membership.
- By posting on this forum you agree to abide by the group rules and guidelines, and to abide by the actions and decisions of the group Owner and Moderators. See �Group Topic, Rules and Guidelines� in the Files section:
http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/

BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE �OWNER� AND �MODERATORS� OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE  �OWNER� AND �MODERATORS� OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.



Yahoo! Groups SponsorADVERTISEMENT


---------------------------------
Yahoo! Groups Links

   To visit your group on the web, go to:
http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/
  
   To unsubscribe from this group, send an email to:
DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com
  
   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 



[Non-text portions of this message have been removed]