From: shannon stoney (sstoney@pdq.net)
Date: 09/24/01-08:16:24 PM Z
Bob wrote:
>A, so called, black light, of the type one uses to make posters
>glow, is probably not the best choice. While it will work to some
>extent, your exposures will be very long. Actally, an ordinary
>flourescent lamp will work better
My experience this summer was that the black light (BLB) bulbs that
are blue take about seven minutes to expose a "normal" cyanotype
negative. Regular flourescents, even after an hour, still had not
exposed the print enough to get anywhere close to Blue Max.
--shannon
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