Digital BW, The Print

The tone of a silver print in selenium toner is very dependent on both
the dilution and the length of time toned. You could get 50 different
tones from selenium toner. Also it is hugely dependent on the brand of
paper you are toning.  So what is the color of a selenium toned print?
It really varies...


Jerry

Paul Roark wrote:
> 
> Robert Morrison wrote, in part:
> 
> >... On EAM I would say that my general
> >impression is that FS-N looks blue and Selenium
> >Piezotones look ever so slightly eggplant.
> 
> There appears to be a substantial variance in the tones that are achieved by
> toning silver prints with selenium -- the paper, strength of toner and time
> in toner being the primary variables.  In recent years I have (or had) been
> using Kodak Polymax Fine Art paper and toning in selenium 1:19 for 3
> minutes.  This light toning was the usual practice, as far as I could tell,
> for those who wanted better archival properties, a slight increase in Dmax,
> and not a severe color change.  (Heavy selenium toning often results is a
> rather magenta print.)
> 
> Using the X-Rite spectrophotometer to read a sample of a silver print that
> was toned in selenium per this normal procedure, I get the following:
> 
> Dark black (not Dmax):   c=1.70, m=1.71, y=1.66, v (visual)=1.71
> 
> Shadow tone (about 75%): c=0.99, m=1.00, y=0.99, v=1.00
> 
> Midtone (about 50%):     c=0.59, m=0.60, y=0.59, v=0.60
> 
> Light tone (about 25%):  c=0.33, m=0.33, y=0.32, v=0.30
> 
> So, basically, the light tones are slightly cool, the midtones are neutral
> with a slight magenta cast (the slight "eggplant" tone, I would assume), and
> the deep shadows/near black tones are cool.
> 
> It would be interesting to see how the new PiezoTone selenium values look in
> comparison to these.
> 
> For comparison, an FS-N test strip on EAM, with the Piezo driver gives:
> 
> 100% black: c=1.59, m=1.60, y=1.61, v=1.59
> 
> 75%:        c=1.00, m=1.00, y=0.98, v=1.00
> 
> 50%:        c=0.66, m=0.65, y=0.63, v=0.66
> 
> 25%:        c=0.32, m=0.32, y=0.31, v=0.32
> 
> Paul
> http://www.PaulRoark.com
> 
> 
> Please visit the Group Homepage to check the Files, Bookmarks, Polls and other resources as they are often being updated. The page is at:
> 
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
> 
> Please follow these basic guidelines:
> - Include your full name with your message.
> - Include the address of your website, if you have one.
> - As threads develop, trim off excess portions of earlier messages to keep them short.
> - As the topic of a thread changes remember to change the subject header.
> - Good manners are required at all time. No personal attacks or "flames."
> - Complete your Yahoo profile.
> - Before posting a question, search the message archives and the various resources on the homepage.
> 
> 
> 
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/