Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Peter De Smidt
<pdesmidt@...> wrote:
>
> So with all of the good info presented by Paul and others, I made my 
> first grayscale ICC today.  I printed Paul's 21 step stepwedge (with 
> 2.20 max density, as that's what I get with my R2400 and EPSM).  I 
> noticed that the profile embedded with the file is grayscale 2.2.  I 
> have been using Dot Gain 20%, as I've heard that it leads to more
'open' 
> lower print values.  I didn't color manage the stepwedge. (That was the 
> right thing to do, right?) Should I change my working space to 2.2 when 
> I use the ICC?
> 
> BTW I used my MacBeth 914 reflection densitometer and coverted the 
> visual density to L* via a formula.
>
Hello,
I want to purchase an eye one spectrophotometer to make profiles for
my printer but I wondered whether I can also read a density value fron
that device (I need it to read target for alternative process like
platinum printing). I find on www that there was not correlation
between density and the L* chanel. You' d understand my interest for
your formula! 
Thanks for reply
Christophe