well why don't KODAK D-76 for Delta 400. 75ml chemical + 225ml water in 26 degree C, you can process it in 14 minutes. Agitation is 8 times per minute in one roll and 4 times for 2/more.If you expose in push EI 800/1600 you can process it in 20% more time then your normal 400. Similar too in pull process.The time will go down 20%.(posted 9520 days ago)