RE: Dark reaction
I have no problems with fluorescent lights in my work area as long as (a.) I keep them off while drying the freshly coated print and (b.) I use the (now dried) paper immediately - without extra/unnecessary exposure from fluorescent room lights... I once did a test placing a plastic fork over the dry paper (to check unexposed vs exposed) and observed a definitive fogging (normal yellowish color under fork, greenish/bluish everywhere else) of trad. cyanotype (the slowest UV sensitive process I know) in about 30-40 minutes. So, fogging is definitely there, always, but inconclusive as long as you follow rules (a.) and (b.) above... Regards, Loris. -----Original Message----- From: Judy Seigel [mailto:jseigel@panix.com] Sent: Monday, November 02, 2009 5:01 AM To: alt-photo-process-l@usask.ca Subject: Re: Dark reaction ... I have however come across warnings against fluorescents in "the literature," but wonder if the warners ever tried it. As I've probably mentioned, when I was teaching "non-silver," the classroom (a repurposed chem lab) was lit by several banks of fluorescent lights set in a fairly low ceiling. But I gather that some folks really do coat by safelight -- and, if memory serves, some how-to sources advise that. (Is that possible? YIKES!)
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