On 2012-09-25 12:52, Jan Faul wrote:
WE have an almost identical setup, but use a friendly gas substitute for air. The dirt we spend time spotting out doesn’t come from the scanner, it comes from the lab processing the film. AS labs have gotten more miserly in their operational costs, they have cut back on buying new filters for both water and air.
That's my experience as well, little of the stuff I spot could have been blown off. (I do blow off what I can, though not with as sophisticated equipment.)
Much of what I'm spotting off is *my own* poor lab technique when I get into the late 60 and the 1970s. None of the darkrooms I used in highschool or college had water filters, and it took me several years to discover that a final rinse in distilled water (and diluting the Photo-Flo with distilled water) helped a lot.
-- David Dyer-Bennet, dd-b@xxxxxxxx; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info
