I wouldn't go so far as that. I called up a radio station a while back because my oscilloscope was showing a 45-degree line where the stereo scatter fuzzy oval should be. They thought I was a lunatic until I double checked by listening in my car. No it wasn't my equipment. And my scope is nowhere near calibrated. All their lab equipment was switched on the digital signal so they didn't notice the board on the analog side was switched to mono.
Originally Posted by noacronym
Meanwhile to add a possibly useful question to the thread. Is this the kind of step wedge layout used for testing?
If so, can you test with an offset, or 90-degree angles to your usual. Maybe you are seeing an effect where the outside edge of the film receives greater development than the center.
p.s. I work for Kodak, but not in film - here I am a hobbyist. The opinions and positions I take are my own and not necessarily those of EKC.