[pure-silver] Re: a recent problem with fine dust on negs


On 23-Jul-09, at 12:47 PM, Janet Cull wrote:
The first roll I noticed the problem on cleaned up when washed. Then I mixed fresh developer and developed the most recent 2 rolls. Those did not clean up with washing. I did find a roll developed before I mixed the developer, but after the water changed, that is pretty alright. The picture I posted is from the worst (or is it, "worse") roll and that doesn't wash off.
I've just strained my developer through 3 coffee filters. I mixed fresh fixer, and I'm using a distilled rinse after each water process. It's rinsing now. I hope it's better. I don't have time for all this fun right now... but fun it is. My left eye is twitching. Would you call that eye-strain??? 

Janet,

One more possible source (if I may).
Were you using rapid fix? On a few occasions I have had undiluted Rapid fix 'precipitate out' when it has gotten well past the "best-by" date, and finding out I do not have enough for immediate use, I have been guilty of mixing a small amount to make up the required volume with only the safelight as illumination.. Bad move.... some fine precipitate has landed in the required aliquot of fixer.. and was not 'observed' until the white light was switched on. But I must admit that I have never experienced the fine precipitate 'clinging to the film' to cause a problem similar to yours. 

Ken
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