The film must be processed by ECN-2 processing method.
I work with Kodak 5207/250D film a lot, and now I am selling some of my film stock.
Films are all manufactured in 2023 and hand rolled by me. To ensure the amount of exp. per roll, I generally load up to 40 exp.-so for each roll, you normally get 37-39, up to 40 exp.
I try to find matching DX film canisters, but please manually set the camera ISO or change the DX code on canisters.
I also provide ECN-2 process and scanning service, you can check my other listings :)