Hi, I am looking for a suitable lith film to use for making enlarged negatives. Apparently Freestyle no longer sells the universally recommended Arista II ortho litho film and does not stock a replacement. I came across the website for Valley Litho Supply. In the offset printing section they have Lith (A,B) "WA-4 premium line and halftone film" http://www.valleylitho.com/acatalog/Valley_Litho_Supply_Lith__A___B__Film_15.html. Is this what I'm looking for? I know ultrafine online carries lith film for photography puposes, but the WA-4 film is cheaper (which would be nice if it could be used for an Arista II ortho litho film replacement). Sorry if this is a silly question, but I am not familiar with Lith printing products/lingo - I don't want to order the wrong stuff.