I appreciate the thoughts and I'll procure the developers you folks suggested. To be clear, my film may be orthochromatic, but as far as my question is concerned, its main characteristic is the "Lith" in the title, so... yeah, the trick will be to tame a graphic arts film through (let me count the ways) -exposure -developing chemistry -developing time -developing length -and paper grade The orthochromatic emulsion is simply why I would bother to go to the trouble. I DO have a some long-outdated contiuous tone ortho sheet film, AND I'll certainly order the Macos product too.... This 35mm stuff is all for fun. Mainly, I want continuous tone ortho film in 2-1/4 x 2-1/4 and in 4x5. Suggestions of other resources for these stocks is also appreciated!(posted 8354 days ago)Thanks again! --Doc.