I've recently become interested in using Rodinal but I am a bit confused over the development times, so please excuse my n00bish question. I've been doing some research for the last two hours over standing development and it has gotten late and I'm tired and still confused, but I keep running across two dev times for 1+100 dilution. It seems that people use a 20 minute dev time or a 45-60 minute dev time for the same dilution. Well...which is it?!!? 20 minutes or 45-60 minutes? Can someone provide me with some additional information as to why there are difference for the dev time even though the dilution hasn't changed? FYI - I am interested in trying this dilution for Tri-X Thanks in advance!