Digital BW, The Print

Somewhere along the way in my own look at effects from OBA's I remember seeing that there could be absorbtion and readmission within the visible spectra as well as the uv to visible results we normally associate with these.I wish I could point to specific references but memory fails on that score:)
That could easily explain some of the bumps and dips perhaps.

Regards,
Duane
  

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "pr_roark" <roark.paul@...> wrote:
> 
> There are some interesting dips on some of those graphs.  It makes me wonder what is in the paper or coating that is absorbing light in a narrow band.  Interesting stuff, but a bit hard to relate to on first exposure.
> 
> Paul
> www.PaulRoark.com
>