Cor Breukel (cor@ruly46.medfac.leidenuniv.nl)
Thu, 21 Jan 1999 11:39:56 +0100 (MET)
On Thu, 21 Jan 1999, Rodrigo Whitaker Salles wrote:
> HELLO FOLKS,
>
> I own Kodak's control scale T-14 (CAT 107 7999) and Step tablet nš2 (CAT
> 152 3398) uncalibrated.
>
> Considering a normal development, what step in the T-14 corresponds to a
> neutral 18 %gray card ?
>
Densities T14 (mine obviously..:-)..), read on a LKB laser densitometer
(anyone around with a manual of this maschine?.., I only know the basics,
and its readings more or less fit with the expected ones on a Stouffer
stepwedge..)
1 0.20
2 0.33
3 0.49
4 0.65
5 0.80
6 0.95
7 1.11
8 1.26
9 1.41
10 1.57
11 1.70
12 1.86
So you see a more or less exact increase of half a stop (0.15)
Hope this helps
Cor Breukel
http://ruly70.medfac.leidenuniv.nl/~cor/cor.html
"The Infrared Gallery"
http://ruly70.medfac.leidenuniv.nl/~cor/ir-gallery.html
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