Its a matter of density. Pictoria is supposed to be able to hold more ink without running - so it should be able to create a higher contrast negative than other transparency mediums.
If the negatives made with a regular transparency work for what is being done fine, if more contrast is needed pictoria. If even more is needed then perhaps waxed paper. I do my cyanotypes by shooting ortho film in camera and developing in a low contrast developer. I make big negatives and contact print them. This works very well, and is fairly simple, now that I have a reasonably good developer. Gord On Thu, 21 Nov 2002 [email protected] wrote: > Couldn't you just print the negative on transparency material, the stuff used > for overhead projectors? > > Seem s doable, and muck easier than waxing paper. If you want the funky look > maybe print through store bought wax paper. > > Just a thought. > --------------------------------------------------------- Gordon J. Holtslander Dept. of Biology [email protected] 112 Science Place http://duke.usask.ca/~holtsg University of Saskatchewan Tel (306) 966-4433 Saskatoon, Saskatchewan Fax (306) 966-4461 Canada S7N 5E2 ---------------------------------------------------------
