(This is off list) Hello Dave, I saw your comment about the sepia toners... is this because the first type was for papers having old style lumpy grains (Single jet emlsions), and the later type was for emulsions composed of cubic crystals (Double Jet emulsions)? I was wondering if you have (or know where I can find) Electron Micrographs for the different paper emulsions? I am trying to figure out when cubic grains first appeared in B/W papers... and why. Do you know? Thank you, Ray ------------------------------------------ Dave Valvo <dvalvo@xxxxxxxxxxxxxxxx> wrote: > Kodak sells two Sepia toners. I formulated Sepia > II to be a stronger > bleach. Use it if you are having trouble bleaching. > The redeveloper is the > same in Sepia I or II. Sepia I was designed years > ago for the old simple > emulsion chemistry papers. > > Dave ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.