Re: opaque filter inside slr

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 18 Jan 00 at 8:33, bulrich wrote:

> hi!
> I recently read an article about IR photo, talking about putting a gel
> filter "somewhere" behind the mirror of SLR camera, for avoiding the on and
> off of the opaque filter. 
> Few questions about that:
> 1. can I do that myself, is it easy?

Yes, you only need a steady hand when cutting the filter, since it 
must fall just between the film rails....
 
> 2. where exactly in the camera, from the front or the back?

>From the rear, between the film rails....with a few mm's of ordinary 
clear office tape on each end.
A #87C (0.4mm thick polyester) has been sitting that way in my EOS-1 
for several years now.
And from time to time I also tape a #12 medium-yellow in my second 
EOS-1, for Ektachrome IR....once you start juggling with several 
lenses and bodies on a steep ski slope in -20C weather, all handling 
should be kept to a minimum....definately fiddling with 
filters....not to mention the risk of mis-matching filters & film 
type in the heat of the moment....;-))
 
> 3. where can I find that kind of filter, is it expensif?

I can supply you with several types (differing in both color and 
material/thickness/stiffness), all for US$0.50 pro square centimeter.
Email me privately if you want more info.












 

--                 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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