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Digital BW, The Print

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Re: [Digital BW] Re: narrowing in on my solarized prints problem

2014-10-26 by Paul Roark

I'm sorry, I misspoke earlier. The LC is what you ought to be looking at, not the C. And what your flat spot sponed like to me was a weak LC. So, that is what I've been seeing if we can verify.

I think the best way to do this is pick a single Calibration Mode density patch -- say 40 -- and compare the LC to the M and LM, which are the darker and lighter inks, respectively. If you have the 2 Jpegs -- the one I posted and the scan of yours of the inkset/printer with the problem -- in PS, try using your Brightness/Contrast to get the LM and M of the two to the same Lab L (or RGB) values. Then compare the LC values of the two scans. Is yours lighter than mine?

Paul

On Sat, Oct 25, 2014 at 5:59 PM, paulmwhiting@... [DigitalBlackandWhiteThePrint] <DigitalBlackandWhiteThePrint@yahoogroups.com> wrote:

Yup, the slider was at 100.

OK, here we go... they're a lot closer now, your numbers are slightly lower but appear to be consistently lower:

percentage........your print's cyan numbers.... my Cal Mode's #'s

0.................................240........................254
5.................................149........................156
10...............................108........................111
15................................82,,,,,,,,,,,,,,,,,,,,,,,,,85
20................................67.........................70
25................................58.........................59
30................................49.........................52
35................................42.........................46
40................................38.........................42
45................................35.........................40

Now I've done this only for cyan... what does that tell us so far? perhaps another cart is the culprit?

I don't expect you to answer tonight ... this has been pretty intense. But I do hope to continue this pursuit. I feel like we';re on the right path.

Paul


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