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- Newsgroups: rec.photo
- Path: sparky!uunet!walter!att-out!pacbell.com!sgiblab!munnari.oz.au!uniwa!cujo!cc.curtin.edu.au!zrepachol
- From: zrepachol@cc.curtin.edu.au
- Subject: Re: Afterglow from florescent lights?
- Message-ID: <1993Jan24.041251.1@cc.curtin.edu.au>
- Lines: 15
- Sender: news@cujo.curtin.edu.au (News Manager)
- Organization: Curtin University of Technology
- References: <nkane.3c0u@terapin.com> <502@cimsand.cimage.no>
- Date: Sat, 23 Jan 1993 19:12:51 GMT
-
- Nathan Kane (nkane@terapin.com) wrote:
- : I remember hearing something about an afterglow or something from white lights
- : after they are turned off fogging paper/film. Anybody know anything about this?
- : Reason I'm asking is because in the darkroom I'm building I have a florescent
- : light that I'll be useing for white light.
-
- Well, last night I did a test on an Osram 9w 'PLC' electronic balast compact.
- With eyes dark adapted, I could see the after glow for over 1 minute after
- it was switched off.
-
- I would not expect any effect on paper after the first 5 sec or so, BUT, I use
- a lot of TMZ, often pushed to hell and back...
-
- ~Paul
-
-