David, Why repost your first comments? That is the point. An image needs to progress PAST the point of capture. It will be processed. I don't dispute that having an accurate way to measure is a good thing, but the reality of how much happens after that also needs to be taken in to the discussion. Is there a digital workflow where NO sharpening takes place after capture? If not, or not commonly being used here, then this optical illusion that you refer MUST be a part of the discussion; and as you point out, not such a straight forward thing to measure. So as far as we know, what brave independent tester is taking that on? Eric Neilsen Photo 4101 Commerce Street, Suite 9 Dallas, TX 75226 214 827-8301 http://ericneilsenphotography.com SKype ejprinter _____ From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Cdtobie Sent: Sunday, September 28, 2008 8:15 AM To: DigitalBlackandWhiteThePrint@yahoogroups.com Subject: Re: [Digital BW] DSLR sharp? -- was How tiny dots determine real resolution in a B&W ink print Post-capture sharpening is an optical illusion, so testing it is not as straightforward as counting visible lines per inch. I don't believe there would be any valid method other than visual evaluation, at a fixed distance, using side by side prints with the same size, image, media, inks, printer, profile and lighting . But then; the results would really only tell you about that combo, and might well be different for other combos. C. D. Tobie WW Product Technology Mngr. Digital Imaging & Home Theater DataColor.com CDTobie@DataColor. <mailto:CDTobie%40DataColor.com> com [Non-text portions of this message have been removed]
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RE: [Digital BW] DSLR sharp? -- was How tiny dots determine real resolution in a B&W ink print
2008-09-28 by E Neilsen
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