Re: IR opaque film holders

[njshih@xxxxxxxxxxx (Remi Shih)]

>Russell -
>
>The five dots indeed do indicate that the slide is IR proof.  I've not
>had any problems with my Riteway holders, but have been told that
>Fidelity holders without the dots will leak badly.  If you have wooden
>holders, I wouldn't bother trying, as they should leak badly.  The dots
>refer to the slides only, but since it sounds like you have gotten a
>mix, it would be a good idea to run a test.  No need to use a full sheet
>for each holder, just cut a sheet into as many holders you have.  Put a
>piece into each holder, take them out into the sun, and find out for
>yourself.  If you find the wooden ones to NOT leak and/or the others TO
>leak, please let us all know.  I've never seen otherwise, but I've
>certainly not seen everything. <g>
>
>george
>
>--
> Handmade Photographic Images
>  http://www2.ari.net/glsmyth/
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I have heard the five dots.  Where can I find these famous five dots on the
4x5 film holder?  I notice that on the dark slide of my 4x5 film holer
there are:

                  ------
- -------/             \-------
|      *     *       *       *      *    |
|--------------------|
|                                               |

Is this the one?

==============================================
N. Remi Shih
Research Scientist
Tricki Bioengineering Laboratory
Department of Chemical Engineering and Pomology
University of California Davis




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End of Infrared-Digest V0 #5
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