Digital BW, The Print

If anyone has some small, full range, high quality, wet silver prints 
(selenium, platinum, warm, neutral, sepia), but no spectrophotometer, 
I would be glad to do the readings and post the results for all.  If 
anyone wants to mail them to me, contact me off line at 
lbdina@....  Just another way to do it.  I'd gladly mail the 
prints back if desired.

Thanks,  Lou

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "ldina" 
<lbdina@c...> wrote:
> 
> I was hoping an accomplished, active wet darkroom person could 
> provide some information.  I want to create some B&W profiles based 
> on LAB spectrophotometer readings of neutral, selenium, sepia, 
> platimun and warm silver prints.  Ideally, one would take a 
gorgeous 
> print, then make a second print of a 21 or 26 step grayscale using 
> the exact same exposure, processing etc.  (Or, take LAB readings at 
4 
> or 5 points in the print, approximating zones 1, 3, 5, 7, 8).
> 
> Armed with this information, it would be possible to approximate 
the 
> coloration from shadows to highlights in a good profile for IJC/OPM 
> or QTR.  Perhaps someone has even done something like this already.
> 
> I know the coloration is subjective and based on the preferences of 
> the photographer, but I thought it might be a useful starting point.
> 
> Can anyone help, or does someone have data they have already 
> accumulated that they can share?
> 
> If this happens and I manage to create great profiles from the 
data, 
> I would be happy to share what I come up with.
> 
> Thanks, Lou