DDX is a consumer version of the good ol Ilford DD (Dip and Dunk) used in commercial machines. DDX adds a certain amount of accelerant (to simulate the old brown effect) and the working solution works fine for 1 or 2 reuses within 24 hours. When it came out ( year 99 or 2000) David Carper from Ilford posted testing times and sent samples to anyone who asked . Look in the Ilfopro forums for his postings on DDX. IIRC there is a consensus to develop +1 D3200. i.e. expose as 1600 develop as 3200 and so forth. --- On Thu, 8/27/09, Eric Nelson <emanmb@xxxxxxxxx> wrote: From: Eric Nelson <emanmb@xxxxxxxxx> Subject: [pure-silver] Re: Delta 3200 Processing recs. To: pure-silver@xxxxxxxxxxxxx Date: Thursday, August 27, 2009, 10:46 PM Heh, good thing I don't always rely on memory when it comes to critical things like developers and dev. times! I see here that at 20° Perceptol and Microdol are the same times. Thanks for the recommendations. My Ilford pdf's have all the times I need. Since this is a film that rarely comes through here, it was a case where opinions matter. > Thanks guys for all the answers. I mentioned Pyrocat and PMK mostly to show > that I do keep some variety around here, but since I didn't shoot this film, > I have no idea if those 2 would be appropriate for the images they contain. > I did want to get an opinion though as to what in others' experiences were > and what has worked for them and it's interesting Pyrocat and PMK were both > recommendations. > Personally I was hoping for T-max or D-76 since they're so easy to work with > and both are always ready to go here. The recommended developers (by Ilford) > are DDX and Microphen, neither of which I carry normally so other options > were needed. As I understand it, Microdol is similar w/Micophen, but no one > nowadays wants the speed loss for the more commonly used films that come > through here, despite the grain advantages so I don't keep it around unless > it's asked for. > Microphen is closer to T-Max in performance. It is a D-76 type developer using Phenidone in place of Metol. Microdol-X is an extra-fine-grain developer, its Ilford equivalent is Perceptol. These are not appropriate developers for very high speed film since they loose speed. T-Max or T-Max RS is an excellent pushing developer and will not create a shoulder. DD-X is probably similar to T-Max but there is only MSDS information available about the two and its not enough to analyse them. The T-Max developers produce somewhat coarser grain than D-76 but also produce slightly higher speed. I've used T-Max RS quite a bit in the past but have never used DD-X so can't testify about it. T-Max was quite satisfactory. If you desire the highest speed from the film T-Max is the right stuff to use. If its been shot at a moderate speed D-76 will work well. Ilford should have on line data sheets for the film and usually gives recommendations for Kodak as well as Ilford developers. Since these are someone else's films I would use a predictable and reliable developer. -- Richard Knoppow Los Angeles, CA, USA dickburk@xxxxxxxxxxxxx ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there. ============================================================================================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.