i am at home using my dad's darkroom, and he has "Heico OS film developer" chemicals, which seem to behave differently than the ones i've used at school. there is a table on the back of the bottle with times listed for different dilutions, but doesn't say which dilutions are for which types of film. they also don't specify different times for different speeds of film. i am using t-max p3200, and can't remember from school how long i used to develope it for. can you help?(posted 9885 days ago)anne.