Digital BW, The Print

Almost there: Reduce ISO (more shadow detail - expand
lower portion of historgram) and increase development
time (push highs -- increase the upper portion of
historgram).

Guy

--- "Nick H. Nugent" <nghin@...> wrote:

> Hi Phil,
> 
> I haven't done any zone system dev. for a long time
> so it's difficult now for me to think about what is
> involved here. It does appear your histogram is a
> bit
> compressed, this means your ISO maybe too high (with
> longer development time) for the scene (or maybe I'm
> wrong  :(  ).
> 
> Anyway, the idea is you want to have the widest
> exposure lattitude possible for your film and scene
> using your favorite zone system development recipe,
> and if the scanner is not able to capture all the
> details in one pass, do it twice at different
> exposure and merge them in your software.
> 
> Ah...perhaps someone else who is currently doing the
> same thing as Phil can chime in.
> 
> Best,
> --nick
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com,
> "pdcorlis"
> <pdcorlis@a...> wrote:
> > I'm an old zone system guy that has used the
> "proper
> > proof" to dial in my negative ISO and development
> > times to work well on my printing paper. Now the
> old
> > wet lab is gone and replaced with a scanner,
> > computer, and printer. When I scan one of my
> > negatives on my Epson 3200 - the histgram shows
> data
> > (tones?) from about 80 - 240. I'm assuming the
> more
> > of the input histgram I use, the fewer the gaps
> when
> > I set my black and white points to output to 0 -
> 255.
> > I hope thats right thinking.
> > 
> > If it is, I would assume from the histgram that my
> > ISO is a bit too high and development a bit too
> short
> > 
> > Would it make sense to calibrate ISO and
> development
> > times to use more of the scanner histogram? If so
> -
> > is there a better way than shooting test frames
> and
> > scanning them?
> > 
> > Any help would be appreciated!
> > 
> > Thanks
> > 
> > Phil C.
> 
> 
> 



		
__________________________________ 
Discover Yahoo! 
Get on-the-go sports scores, stock quotes, news and more. Check it out! 
http://discover.yahoo.com/mobile.html