Quote Originally Posted by Photo Engineer View Post
Some films are on acetate and some are on Estar and it is up to the user to check the support.

Great another rat hole for me to venture down. Troubling that in everything I've read by the masking gurus (Burkett, Bond, Radeka etc) I don't recall ever seeing any mention of this variable in chosing the masking film. They all use and recommend a variety of films from TMax to FP4 to Ortho Plus to various slow ortho/litho films.