I'm confused on how much developer to mix with water. On the tmax bottle it says 1 part devloper with 4 parts water. I'll be using 400ml all together. I don't know how much developer to add to 4 parts water.
Tim,
I use T- Max RS develpoer mixed 1 to 9 (one part concentrate from bottle to nine part water)at 75* in a Jobo processor for 8 minutes. This is what I use for all of my T-max films sizes. I hope this helps.