Re: lights for alt processes

George L Smyth (GLSmyth@ari.net)
Wed, 19 Nov 1997 22:14:25 -0500

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TERRY KING wrote:
>
> Message text written by Joseph Portale
> >
> I'm new to alternative processes and have a light source question. I'm
> planning on building a light box to expose platinum and/or argytypes. What
> florecent tubes are recommended? Thanks for the help
> <
>
> Joseph
>
> Nearly everybody else on this list uses black light tubes or similar
> tubes. You will often find that professionals use HPR Mercury Vapour bulbs
> which are designed to produce light ( radiation ) at the right wavelengths.
>
> Terry King

I'm using el-cheapo bottom of the line florescent lights I found in the local
hardware store. I thought that the exposure times were very long, but I found out
that I merely had some bad chemicals.

george

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