Archived posting to the Leica Users Group, 2001/12/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I believe the minimal agitation technique is also discussed a bit in the'Film Development Cookbook'. I think they suggest trying agitation for the first minute, then a few gentle inversions every 3 minutes. This usually goes along with using dilute developer (xtol 1:3, rodinal 1:100...) as you wouldn't want to do this with a short development time. Development times will be a bit longer than 'normal' with this agitation scheme, so they suggest I think starting off by adding 50% to the 'normal' time. I tend to do something along the lines of what Gilbert and Johnny have described. I use fairly 'normal agitation for the first 3-7 minutes, then go to 2 or 3 minute intervals for the rest of the development. The potential problem with going to long intervals after just the first minute, is you run a higher risk of airbells or other development irregularities, at least in my experience. Tom Finnegan Seattle on 12/22/01 10:02 AM, Eric at ericm@pobox.com wrote: > Like what? You can't offer a tidbet like that and leave us hanging. What > have you been trying and with what results? :) Example: I run HP5+ in Xtol 1:3 for 16 minutes @70 deg. F. I agitate for the 1st 30 seconds, give it 4 inversions on the minute through 11 minutes; but then I go 90 seconds to minute 12:30, 90 seconds to minute 14:00, and then let it stand to 16:00. The highlights don't blow out, but the shadows keep developing. Special thanks to John "Johnny Deadman" Brownlow for this technique. Gilbert - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html