Archived posting to the Leica Users Group, 2006/12/14

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Subject: [Leica] IR Filters
From: faneuil at gmail.com (Eric Korenman)
Date: Thu Dec 14 08:06:01 2006
References: <01be01c71f92$77708ea0$6401a8c0@FrankDell2> <458172B0.1030701@waltjohnson.com>
 
Not sure of the details, but 'brightners' in the detergents will cause
clothes to fluoresce under UV light
(Think of what happens to your white shirt or socks when you enter a museum
exhibit with a 'black light')

Don'

Eric


On 12/14/06, Walt Johnson <walt@waltjohnson.com> wrote:
>
> Sounds as if it might be caused by the choice of detergents  by our
> subjects. Guess when I get my M8 I'll avoid TIDE users.
>
> > something to do with optical brighteners in the cloth of the
> dress.....   Can someone comment on this old
> >phenomenon and its solution?
> >
> >Frank Filippone
> >red735i@earthlink.net
> >
> >
> >
> >
> >
>
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In reply to: Message from red735i at earthlink.net (Frank Filippone) ([Leica] IR Filters)
Message from walt at waltjohnson.com (Walt Johnson) ([Leica] IR Filters)