Have also looked at AGFA film vs. ALI-7 and agree with other respondents regarding edge acuity. In regard to stability, no film manufacturer to my knowledge has developed a polyester base that has superior stability compared to their competitors. Kodak had reduced the amount of gelatin in the emulsion formula but the I'm not sure we saw a marked improvement in stability. The best way to ensure stability is to carefully control the film storage, (raw and imaged), image generation and image transfer areas to each other. Film manufacturers cite 70 degrees F and 50% Rh as optimum. If you're running at 74 degrees and 45% there should be no problem as long as you acclimate the raw film to those conditions AND your other imaging and storage areas are also running at or about those conditions. Scratch resistance is a nice feature. The ALI-7 and Agfa products both exhibit this characteristic. "Scratch resistance" is the key. Don't confuse it with "scratchproof". No conventional silver halide film is. To reduce scratch related defects nothing can beat "good housekeeping" and proper handling practices. Hope this information helps. KJ ______________________________ Reply Separator _________________________________ Subject: Re: Plotting Films Author: JMONAGHAN at hadcoderry Date: 6/3/96 09:53 AM At 06:11 PM 6/2/96 -0700, you wrote: >Any opinions concerning Plotting and darkroom films for pcb >manufacturing? >Which do you prefer >Any comparisons between Kodak and Agfa? >Line edge , Stability , Scratch resistance >opinions greatfully accepted. >Thanks > John Gibson J.A.G. Imaging Systems > [log in to unmask] > > We evaluated darkroom films about 8 months ago and the line edge acuity (fringing) of the Kodak films was superior to the other films. Lyle Anderson Electrostar-Utah [log in to unmask]