Archived posting to the Leica Users Group, 1997/07/07

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Subject: Re: Focus Shift with SFX200
From: ROB HEYMAN <rheyman@cynergy.com.au>
Date: Tue, 08 Jul 1997 09:52:14 +1000
 
George Huczek wrote:

> I want to try some Ilford SFX200 with a 50 Summilux-M on an M6, using
> a red
> filter.
> Is is necessary to compensate focusing for IR light, and if so, how do
> I
> determine how much to shift the lens?  Anyone tried this with IR film?
>
> -GH

If you would like to know anything about Infrared and SFX and a stack of
other stuff try this site.
http://www.a1.nl/phomepag/markerink/mainpage.htm

You can also join his VERY active group on IR by going to:

http://www.clicio.com.br/links.htm and accessing "newsgroups" to find
Infrared. Then follow instructions.

Rob