Paul,
I *finally* got around to trying your suggestion! The result (with
no adjustment curve or icc) seemed like it was ok, but when I tried
to create curve to correct for the darker print it really looked bad
(very harsh transitions). Obviously it wasn't as simple as I had
hoped :) So I think I'm going to stop worrying about it until I get
the QTR program and have more control of what's happening!
One other thing...I've heard the term 'linearize' a lot recently but
I can't figure out what it means in the context of printing...can
anyone explain? Is it basically creating a calibrated workflow all
the way through?
Thanks,
Brian
http://www.brianchapmanphotography.com
--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
<paul.roark@...> wrote:
>
> Brian,
>
> (Catching up on the e-mails here ...)
>
> With respect to the workflow, I was just looking at the printing.
It sounds
> like you're using "Color Controls" set to 0. It also sounds like
when you
> print in Gamma 2.2 the problem is less. That might be consistent
with my
> thoughts.
>
> The Epson driver when set to "Color Controls" holds back some of
the midtone
> inks. I've never tested it, but logically, if those inks are
operating
> under a lower ink limit, they may not cover the black ink dots as
well when
> that ink starts. That's why I suggested you try the "No Color
Adjustment"
> driver setting. It'll be too dark, but you can correct that with a
> Photoshop curve or an ICC made with Roy's "Create ICC" program.
This latter
> route would be what I recommend. It would have the additional
benefit of
> making the print match the monitor.
>
> Paul
> www.PaulRoark.com
>
>
> > -----Original Message-----
> > From: DigitalBlackandWhiteThePrint@yahoogroups.com
> > [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf
Of Brian
> > Chapman
> > Sent: Sunday, May 14, 2006 11:16 AM
> > To: DigitalBlackandWhiteThePrint@yahoogroups.com
> > Subject: [Digital BW] Re: Transitions
> >
> > Hey Paul,
> >
> > Thanks for the info. The workflow I'm using is:
> >
> > 1. Open image in 16 bit RGB (Adobe 1998) from the RAW file
> > 2. Make adjustments including channel mixing for conversion to
B&W
> > 3. Flatten the image
> > 4. Convert to Greyscale (current profile is DG20 for default)
> > 5. Print with Preview using printer driver gamma 1.8 and the
EEM 2.2
> > profile (the results are pretty close with or without the
profile in
> > this case).
> >
> > I have had much better results in the last couple of days
assinging
> > the Gray Gamma 2.2 profile (which displays darker on my monitor)
and
> > then adding an adjustment layer (levels) and increasing
brightness to
> > gamma 1.25 (from 1.00) and then printing using the EEM 2.2
profile and
> > printer driver gamma 2.2. The results are much smoother and
more how
> > I expect (want) them to look.
> >
> > It's somewhat confusing though because 'assigning' the profile
doesn't
> > really do anything except let me look at the image darker on
screen -
> > the real difference in the print is from using the darker printer
> > gamma (2.2) and the adjustment layer prior to printing...is this
> > correct? If it works better this way does it mean that
something else
> > is not configured correctly somewhere else in my workflow?
> >
> > I don't use any of the color controls - I mean they're "on" but
all at
> > zero.
> >
> > Again, many thanks!!!
> >
> > Brian
> > http://www.brianchapmanphotography.com
> >
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
> > <paul.roark@> wrote:
> > >
> > > Brian,
> > >
> > > I'm not real sure what workflow you're using. But, it sounds
like the
> > > problems could be with the dark ink(s) being injected by the
printer
> > before
> > > there is enough of the lighter ink to hide them. If the
problem is
> > due to
> > > the dark grays, I'd expect them to show up closer to 60%. If
they
> > were both
> > > being injected at about the same time due to a grayscale
workflow,
> > some RGB
> > > curves might be able to separate where in the image the
crossover
> > occurs.
> > > Since the problem area is further down, I'd guess it's the
black ink
> > being
> > > injected before the dark grey inks can hide it. If the
workflow you're
> > > using includes the driver being set to "Color Controls" I'd
consider
> > > switching that to No Color Adjustment. That allows the
midtones to
> > go all
> > > the way up to their maximum ink limit. The print might be too
dark,
> > so a
> > > grayscale curve or using Create ICC to linearize the system
might be
> > needed.
> > >
> > > This is sort of a guess, but it might be worth a try.
> > >
> > > Paul
> > > www.PaulRoark.com
> > >
> > >
> > > > -----Original Message-----
> > > > From: DigitalBlackandWhiteThePrint@yahoogroups.com
> > > > [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On
Behalf Of
> > Brian
> > > > Chapman
> > > > Sent: Friday, May 12, 2006 10:17 AM
> > > > To: DigitalBlackandWhiteThePrint@yahoogroups.com
> > > > Subject: [Digital BW] Transitions
> > > >
> > > > In a previous post I mentioned the "stepped" transitions
between areas
> > > > of light and dark in some of the images I have tried
printing.
> > > >
> > > > Here's a link to one of the previous messages:
> > > >
> >
http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/message/77
15
> > > > 1
> > > >
> > > > Some additional experimenting and learning has led me to
believe that
> > > > the transitions between dark and light in a general sense
were only
> > > > part of what I was seeing. The real issue is between
different
> > > > densities of dark where the mixes of ink changes. When I
printed out
> > > > the step wedges from Paul's site (on EEM using Pauls profile
for EEM
> > > > and Gamma 2.2 for the printer driver gamma setting) I
noticed there
> > > > are a couple of "transition" density levels where the
different mixes
> > > > of ink show up more obviously than others - between 70 & 80%
and again
> > > > between 80 and 90%.
> > > >
> > > > For 99% of images this isn't an issue but in images where
the sky is
> > > > very dark and therefore has large areas where those
transitions
> > > > mentioned above occur it becomes visible - almost like a
line across
> > > > the page wherever those transitions occur. (It's much
easier to see
> > > > the transitions on wide areas where it occurs - I didn't
notice it
> > > > when I was printing test strips (1"x8") from the center of
the image
> > > > below. This result doesn't occur with BO printing because
it's all
> > > > the same ink.
> > > >
> > > > Here is an example:
> > > > http://www.flickr.com/photos/brianechapman/75838437/
> > > >
> > > > Does anyone have any suggestions to reduce the effect?
> > > >
> > > > Sorry for the long post, I just wanted to make sure I gave
enough
> > info!
> > > >
> > > > Thanks!!
> > > >
> > > > Brian
> > > > http://www.brianchapmanphotography.com
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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