Any print will reflect the light from the conditions that it is in; I have yet to see an ABW print made on my 4800 that shows metamerism. I'll have to wait until the end of next week to try that image but here is the problem I see with that test. If you are trying to print a B&W neutral image and you are not using a set of Black inks, I doubt that you'd ever get a dead neutral print without color in it. Seeing a very slight color in a print to me in one light source, and then a radically different color in another light, unexpected from the normal shift is bad. How much of what you are seeing is ink related and how much is the combination of paper and ink? Michael, Did I see that your tests were done on Epson Premium Lustre? Perhaps that is the problem and not the ABW mode or K3 inks. How it reflects light. John, What do you mean by normal? (Default settings) I did not find a standard setting very acceptable with ABW. I needed to tweak the ink settings to produce a smooth transition that I was happy with. This being done before I purchased the Print Fix Pro. I have only last week started playing the extended grays, and I would say it has promise. Paul, you seem concerned about the fading of the small amount of color ink. Have you seen data that the colors fade unevenly? How fast? Eric Neilsen Photography 4101 Commerce Street Suite 9 Dallas, TX 75226 http://e.neilsen.home.att.net http://ericneilsenphotography.com Skype ejprinter _____ From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Michael King Sent: Saturday, January 13, 2007 9:21 PM To: DigitalBlackandWhiteThePrint@yahoogroups.com Subject: Re: [Digital BW] Comparison of Ultrachrome K3 Advanced B&W and Cone Neutral K7 I John, Try a more challanging image. This one is pretty brutal. Definitely see metamerism with ABW. http://www.northlig <http://www.northlight-images.co.uk/article_pages/black_and_white_test.html> ht-images.co.uk/article_pages/black_and_white_test.html Mike On 14/01/07, John Hollenberg <weasel@linkline. <mailto:weasel%40linkline.com> com> wrote: > > --- In DigitalBlackandWhit <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> eThePrint@yahoogroups.com<DigitalBlackandWhiteThePrint%40yahoogroups.com>, > "john dean" > <deanwork2003@...> wrote: > > > > There is NO metamerism with NK7 and anyone who says there is is > > talking from a lack of experience and knowledge. > > I think what C.D. Tobie was saying is that he couldn't see any with > Auto B&W mode on Epson either, not that there was metamerism with NK7. > That fits with my experience when I checked today under some > fluorescent lights. Of course, others may have a more discerning eye > than I :-) > > --John > > > [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
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RE: [Digital BW] Comparison of Ultrachrome K3 Advanced B&W and Cone Neutral K7 I
2007-01-14 by Eric Neilsen
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