So why can't you blend profiles on XP? You don't need the complier to make a neutral print using the stock cool and warm profiles. On Dec 6, 2004, at 4:46 PM, johnglodge wrote: > > > All that is fine but the original query did say XP; and for XP the > profiles are delivered canned: no access to the profile compiler! > > ...John > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield > <scho@m...> wrote: >> Neutrality is achieved with the UC inks by adjusting the proportions >> of >> light black, light cyan, and light magenta inks used for the print. >> This adjustment can be more precisely achieved for a user's particular >> printer, inks, and paper by blending the warm/cool profiles than by >> using a generic "neutral" profile made with a different printer, inks, >> and paper. Note also that current QTR profiles do not neutralize the >> black ink (either matte K or Photo K, depending on which papers used) >> so absolute neutrality is only obtained up through the midtones before >> the black ink kicks in at around 75%. In the deep shadows where K is >> the predominant ink the tone will be slightly warmer because of the >> inherent warmth of both the matte black and photo black inks. This >> tonal shift from neutral midtones (with the right blend of warm/cool >> profiles) to warmer shadows will be most noticeable on RC papers >> because of the extreme warm brown tone of the Epson Photo black ink. >> >> >> On Dec 6, 2004, at 2:46 PM, chipcarterdc wrote: >> >>> >>> >>> FYI, I've asked this question before. As I understand it, the > creator >>> of QTR has >>> decided that blending of the various curves to achieve each user's >>> view of >>> "neutrality" is the better method, rather than providing a "canned" >>> neutral >>> curve. (It's been a long time since I asked this question, so > forgive >>> me if I'm >>> misremembering what Roy said in response). That's a fair view, but I >>> still think >>> that, as good as QTR is, it would be helpful to have a canned neutral >>> curve. >>> I've dipped into QTR from time to time, and even paid the shareware >>> fee, but >>> generally use ImagePrint for my 9600, particularly since I need some >>> of IP's >>> other features in addition to neutral grayscale. On my 4000, I plan >>> to use QTR >>> in the future for B&W -- for the moment, it's not an issue since I >>> print my B&W >>> on the 9600 via ImagePrint. >>> >>> The other answer I got in response to this question (not from Roy, > but >>> from >>> other group members) was along the lines of "you just have to >>> linearize the >>> whatchamacallit and build your own neutral curve using a spectrograph >>> thingy." (As you can tell, I don't recall exactly what the response >>> was, but it >>> was over my head). Since I don't know what "linearize" means and >>> don't have >>> any measuring tools of my own and don't know how to build my own QTR >>> curves, this wasn't practical for me. >>> >>> Finally, I got various suggestions on how to combine curves to get a >>> neutral >>> tone (25% of this, 75% of that). I tried and still was not able to >>> come up with a >>> curve I considered neutral gray. (But I'm sure I'll delve into it >>> again someday). >>> I do suggest that you try various combinations to see if you can > come >>> up with >>> a tone you consider neutral. >>> >>> Last point: for what you pay for QTR (very little) and how good of a >>> job it does >>> generally, I think it's an outstanding piece of software. But I > still >>> wish it had a >>> canned neutral curve. >>> >>> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Richard >>> Smallfield < >>> r.smallfield@p...> wrote: >>>> Hi, I've recently installed QTR for XP and notice that there is no >>>> neutral >>> curve. I wondered what people had found the best mix of tones was to >>> get a >>> perfectly neutral curve for EEM/HPR? >>>> >>>> I've just experimented with 25% cool Selenium and 75% Warm and with >>> small prints, and it looks pretty good. However, I've found that with >>> 10x15" >>> prints any slight tonal bias becomes much more noticeable. >>>> >>>> Any thoughts would be appreciated. >>>> >>>> thanks, >>>> Richard >>>> -- >>>> http://smallfield.vze.com >>>> http://photos.smallfield.vze.com >>>> >>>> "The ultimate result of shielding men from the effects of folly, >>>> is to fill the world with fools." >>>> --Herbert Spencer
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Re: [Digital BW] Re: Neutral Curve for QTR
2004-12-06 by Carl Schofield
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