Efke IR820 how do I develop it? I have d-76, tmax, rollei high and low. Digitaltruth list times for tmax mix 1+4 at 20c for 7 min’s and d-76 stock at 20c for 8 min’s both with no ref to the shot at iso. The times on the rollei bottles for their IR film are with High speed shoot at 400iso 1+7 at 20c for 5 min’s and with Low speed shoot at 400iso 1+4 at 24c for 18 min’s I have shot 2 rolls, with an 87C (IR) filter at 25iso. Do I need to need pull process? Would I decree the time by 4 min’s? Or change the mix?