Quote Originally Posted by laser View Post
It would be helpful if you could state your purpose including your film application's exposure time, spectral characteristics, illuminate levels etc.
Thanks for the guillotine suggestions, Bob. I think it would be a bit out of my mechanical skills comfort zone at the moment. It might be easier to try and locate a used EG&G in the future, but I'd love to have a solution sooner.

The purpose of the device is for re-testing 320TXP to establish my N, N-1, N+1 development times, at this stage, and perhaps to evaluate speed too. I describe my issues, including my flawed attempt at deriving CIs, on this thread. Longer-term, I would like to use this set-up to continue testing other materials, but all would be fairly standard B&W film.