Digital BW, The Print

The gamma adjustment primarily affects the midtones as can be seen if
several 21 step wedges are printed at various gamma settings. It has little
or no effect on the blacker blacks and whiter whites (i.e. on overall print
contras). Also, even in the midtones different gamma settings within reason
don't produce really dramatic differences and shouldn't turn the washed out
shadows and highlights (plus banding) that you say you're now getting into
nice prints with good contrast and no banding. And if it did do all of those
things I'd think it was just a bandaid that was obscuring some more
fundamental problem. I don't mean to be critical of the suggestion, at this
point you probably should try anything that isn't difficult to do or
expensive, I just don't think it's going to cure your problems.

I'm not a computer/digital expert but I was able to get excellent prints
with QTR/gui within a few minutes after installing them. It only took a
little playing around with the cool and warm blend. Given all you've said
about your lack of problems with color and with black and white using the
Epson driver, plus the various things you've already tried, my uneducated
guess is that you may just have some oddball incompatability between your
computer and QTR (I never was able to get it to work right on an older
computer using ME, it only works for me on XP).

----- Original Message ----- 
From: "davidpichevin" <davidpichevin@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Friday, March 25, 2005 12:41 AM
Subject: Re: [Digital BW] Quadtone RIP Faded print




--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "tgos3"
<egosfield@c...> wrote:
>
> I went through the entire thread, and apparently nobody has suggested
> playing with the 'gamma' slider.  When I started using QTR with UT2
> inks, i had very flat muddy shadows with poor separation.  I wasted
> quite a while playing with profile blends and max black settings,
> then out of desperation tried the gamma slider.  Using a setting of -
> 7 i was able to produce a very close match of printer output with my
> screen images, without changing max black or mixing profiles.
>
> Since your problem seems to be the opposite, ie too little contrast
> in the midtones, perhaps *increasing* gamma toward 'darker' with the
> slider will solve your problem.



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