Digital BW, The Print

Yahoo messed my table. This time I inserted dots to fix spacing.

................L....... a....... b... R..... G..... B
------------------------------------------------------------------
PremierArtBW....94.14... 1.05... -2.02 238.86 237.55 242.05
Moab Kayenta....96.16... 0.49... -2.29 243.33 243.71 248.36
EEM.............96.68...-0.28.... 0.61 245.25 245.55 244.21
Moab Entrada BW 97.06... 0.59....-0.83 247.13 246.16 248.14
Epson ScrapBook 96.87...-0.06.... 2.01 247.18 245.90 242.01
PremierArtFA....96.73... 0.06.... 2.03 247.03 245.42 241.63
------------------------------------------------------------------

These numbers are results of mesurements that I took for some papers
that I have available: EEM means Epson Enhanced Matte, PremierArt FA
means PremierArt FineArt Matte 205, other names should be
understandable. The first 3 columns are Lab measurements, the last 3 are
the same data in RGB. As you could see, PremierArtBW that visually looks
very white and bright (for me at least) is actually the darkest of all
six. EEM has the most neutral tone. In general, difference in L is
minimal for 5 of six measured papers, visually they are quite different
when compared under the same illumination.



--Sergei


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "sanhodo"
<sschaffell@...> wrote:
>
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Sergei Antonov"
> antonovsergei@ wrote:
> >
> > Out of curiosity I measured all matte papers that I have in house. I
> > used X-Rite DTP20UV:
> >
> > L a b R G B
> > ------------------------------------------------------------------
> > PremierArtBW 94.14 1.05 -2.02 238.86 237.55 242.05
> > Moab Kayenta 96.16 0.49 -2.29 243.33 243.71 248.36
> > EEM 96.68 -0.28 0.61 245.25 245.55 244.21
> > Moab Entrada W 97.06 0.59 -0.83 247.13 246.16 248.14
> > Epson ScrapBook 96.87 -0.06 2.01 247.18 245.90 242.01
> > PremierArtFA 96.73 0.06 2.03 247.03 245.42 241.63
> > ------------------------------------------------------------------
> >
> > Results are a bit of surprise for me: I thought that PremierArtBW
> > is actually brighter than PremierArtFA (205), or that EEM will have
> > the most neutral tone from all measured papers.
> >
> > --Sergei
> >
> > Hi, Sergei,
>
> Could you please explain those numbers for those of us who cannot
> fathom their significance. Is there a summation you can come up with?
> Thanks.
> >
>




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