I'm kind of new @ doing ALLOT of film. I'm getting into in BIG time (for me any way) 5-10 rls a week 35mm. I have just found a new supplier of film and paper that works well for me. I just obtained some Ultrafine powder film developer. The only info I could says that it is like Kodac D76. Could I use these times stated for different types of fiilm I am using (Delta 400 APX 400) ??I use their T grain 400 with DDX 1-4@ 22C for 8 mins. It is a very outstanding high contrast film. That part I got down pat. Just wondering about development times for my Delta400 and APX 400 . Any good words ??