Arista.EDU Ultra B&W film is compatible with all major processing systems. Recommended developing times are for normal contrast negatives (based on intermittent agitation.) All developing times are standardized for 68 Degree F (20 Degree C). Your developing time may vary based on environment and equipment used.Developer: Arista 76 PowderDilution: StockTime @ 68 Degree F (20 Degree C): 6 - 7Developer: Arista 76 PowderDilution: 1:1Time @ 68 Degree F (20 Degree C): 8 - 10Developer: Arista Premium PowderDilution: StockTime @ 68 Degree F (20 Degree C): 6Developer: Arista Premium PowderDilution: 1:1Time @ 68 Degree F (20 Degree C): 7Developer: Arista Liquid Film DeveloperDilution: Working SolutionTime @ 68 Degree F (20 Degree C): 7Developer: Arista Premium Liquid DeveloperDilution: 1:9Time @ 68 Degree F (20 Degree C): 7Developer: Marathon Film DeveloperDilution: 1:9Time @ 68 Degree F (20 Degree C): 6Developer: Ilford ID-11, Kodak D-76Dilution: StockTime @ 68 Degree F (20 Degree C): 6 - 7Developer: Ilford ID-11, Kodak D-76Dilution: 1:1Time @ 68 Degree F (20 Degree C): 8 - 10Developer: Kodak XTOLDilution: (Straight)Time @ 68 Degree F (20 Degree C): 5 - 6Developer: Kodak TMAX DeveloperDilution: 1:4Time @ 68 Degree F (20 Degree C): 5 - 6Developer: Kodak HC 110Dilution: 1:31Time @ 68 Degree F (20 D