Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "mark_roth_505"
<mark@m...> wrote:
>
> Am trying to create curves and determine densities using this gray 
> scale and coordinating with my Epson flatbed scanner...have looked 
> everywhere and cannot find accurate density numbers/info on this, and I 
> don't have a densitometer, and my scanner is unreliable as a starting 
> point. (This is the rectangle 20-step Kodak Gray Scale with 
> the "A", "M", and "B" along with the numbers.) 
> 
> Any help greatly appreciated...Mark

I have one, but honestly, it's been years since I've seen the
repulsive little thing. But just because I'm feeling in a terribly
nice mood today, I've dragged it out of the refrigerator for you,
fired up the X-rite 414A, check it with a ceramic density reference,
and here goes...

A  0.042
1  0.149
2  0.252
3  0.366
4  0.466
5  0.582
6  0.674
M  0.789
8  0.885
9  0.992
10 1.084
11 1.202
12 1.298
13 1.407
14 1.509
15 1.609
B  1.714
17 1.833
18 1.887
19 1.985


Now, the instructions that come with Q-14 (and can be downloaded from
the Kodak site) say it has 0.1D steps, evenly spaced from a range of
about 0.05 to 1.95. Mine looks a little off from that, with the worst
problems in the area from 13 to 17, where we're over 1/2 a step off.
It's pretty close on the ends, though.

Hope this helps.

Joe