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 > > > > > > > > > > > > > > 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 Links > > > > > > > > > > > > > >
Message
[Digital BW] Re: Neutral Curve for QTR
2004-12-06 by johnglodge
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