Digital BW, The Print

Mitch,when you say  "I also like the absolutely neutral grayscale that
ImagePrint gives, and
the subtle toning that is possible with TintPicker." does it mean really
neutral,comparable to a quad,under several kinds of light? Because I've read
so many times that this is impossible with color inks(and it makes sense by
definition) that I'd like to hear a liitle more from you about it...

Andr\ufffd Vallejo
http://andrevallejo.net
----- Original Message -----

From: <DigitalBlackandWhiteThePrint@yahoogroups.com>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Tuesday, July 15, 2003 8:05 AM
Subject: [Digital BW] Digest Number 1633

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, André Vallejo 
<avs@p...> wrote:
> Mitch,when you say  "I also like the absolutely neutral grayscale 
that
> ImagePrint gives, and
> the subtle toning that is possible with TintPicker." does it mean 
really
> neutral,comparable to a quad,under several kinds of light? Because 
I've read
> so many times that this is impossible with color inks(and it makes 
sense by
> definition) that I'd like to hear a liitle more from you about 
it...

The "several kinds of light" problem is called metamerism.   
Typically with the 2200 black and white prints look magenta under 
fluorescent light and greenish under daylight.   It IS possible to 
adjust your profile to eliminate the cast under a particular light 
source but that that only makes it worse under others.   The result 
is that out-of-the-box you can only get neutral black and white 
prints with the 2200 under one specific light source.

However, it turns out that the yellow ink is the worst culprit so 
several RIPs use color combo's that minimize this to achieve fairly 
metamerism-free prints, at the expense of greater coarseness, since 
the dither pattern then has less flexibility.   See some examples on 
my website:

http://studio-nelson.com/inkjet/bw22001.htm

Read it all,excelent text,very enlightning...
I'm arranging to see some prints made with color inks and the IP,to 
finnaly check them out in person...Maybe you could post the original 
pics on the site,though evaluating casts on the screen is a 
problem...
Best,
André

> 
> However, it turns out that the yellow ink is the worst culprit so 
> several RIPs use color combo's that minimize this to achieve 
fairly 
> metamerism-free prints, at the expense of greater coarseness, 
since 
> the dither pattern then has less flexibility.   See some examples 
on 

> my website:
> 
> http://studio-nelson.com/inkjet/bw22001.htm

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Andre Vallejo 
da Silva" <avs@p...> wrote:
> ...Maybe you could post the original pics on the site,
> though evaluating casts on the screen is a problem...

Sorry, I don't have them - these were prints various members of this 
forum sent to me for evaluation.  Or did you mean the original prints?