Re: Tiny cameras for infrared

[Joe Berenbaum <joe-b@xxxxxxxxxxxx>]

At 13:07 18/06/97 -0400, you wrote:
>>Has anyone used the Rollei 35/35S for High-Speed Infrared? And if so,
>> does the lightly dimpled pressure plate ever cause a problem with this
>>film?
>
>I've used a couple of Rollei  35's in the past, and never noticed any
>unwanted contributions from the pressure plate.  I have also wanted a
>smaller>35mm camera for IR, and am considering an older Minox GT or GTE.
>I understand>that the plastic cases on the GT are opaque at the longer
>wavelengths, but>have no idea how I would purchase/modify/build a filter
>for a GT.  I seem>to recall that the camera will not close with a filter.
>I had judged>the Minox to be sharper than XA, but that was my personal
>opinion.>  Does anybody have any definitive information on Minox (35mm)
>and IR??

Using filters on the Minox 35 cameras isn't too hard. A polyester filter can
be cut to fit the front easily enough and stuck on with tape. You have a
choice as to whether to cover the meter cell with the filter; with a dark
red or visually opaque filter this would probably not be a good idea. I
taped a Wratten 12 polyester filter onto the front of a Minox 35ML and it
works well with Infrared Ektachrome. I found this to be a handy combination
since it can fold up and drop into my pocket with the filter on the lens.
The Minox 35ML, unlike the other Minox 35 cameras, can easily be used to
bracket exposures since it has exposure lock on the shutter release.
Another, but expensive, possibility is to get the combined skylight
filter/lens hood that comes with the 35ML and have the glass replaced with
the filter glass of your choice. But then the camera won't close, of course.
Personally I'd like to remove the glass and just use the hood.

Joe B.


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