RE: lith film
> I also don't at this moment recall the names of official > restrainers, but if you look in the formula books under "soft > working developer", they probably name some. Or, if he's > around, Dave Soemarko will know.... Goodness, I used to get so much into those stuffs, and I can't believe it that my memory is fading too. Is it something bromide? maybe potassium bromide? And then there is another popular restrainer too, but I forgot what that one is. If Richard Knoppow is around, he will know. :-) Dave > -----Original Message----- > From: Judy Seigel [mailto:jseigel@panix.com] > Sent: Wednesday, September 10, 2008 9:18 PM > To: alt-photo-process-l@usask.ca > Subject: Re: lith film > > > On Wed, 10 Sep 2008, Keith Gerling > > > > > > Here come the part where I lose the squeamish: I never discard the > > developer. I have a bucket with 2 liters of very dark > developer that > > I started with several years ago. Like Theseus' ship, it > isn't really > > the same, I lose developer every time I use it, and I keep adding > > water and concentrate, as well as occasionally discarding > the sludge. > > But it is the same 2 liters and somewhere in that bucket floats a > > molecule or two that I started with (I think). > ....... The trick is the very weak > > developer. I have no idea why it seems to work better > using exhausted > > developer, but whenever I've tried coming up with a ratio of fresh > > concentrate to fresh water, I've always got bad results. > > I don't claim that this is the explanation, but what comes to > mind is something I read back before the beginning of time -- > that a byproduct (or > byproducts) of development is some kind of "restrainer" > (which is why we're supposed to only use *fresh*). By > keeping the used solution you would have plenty, which for > the purposes of this "explanation" restrain where & how you need/like. > > I also don't at this moment recall the names of official > restrainers, but if you look in the formula books under "soft > working developer", they probably name some. Or, if he's > around, Dave Soemarko will know.... > > Dave.....????? > > J. > >
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