Found: Two Lenses?

[PK6811S@xxxxxxxxxxxxxx]

While digging through a box of camera junk, way down on the bottom I
found an interesting little leather-flap pack with two small lenses
in it.  The brown leather case has the word "Rollieflex" across the
front.  There is a torn-off scrap of paper with something printed
in German on it.  The two lenses appear to be identical and have 
"1x28.5" inscribed on their metal rings, plus a 6/7 digit number -
looks like a serial or part number, one has "5xxxx0" and the other
has "5xxxx2".  "Zeiss" is prominent on the paper note.  They look
like clip-on adapter lenses, maybe for wide-angle pics?  They are
about 2cm in diameter.

Question: are these some kind of clip-on lenses for a stereo camera?
If so and anyone is interested in them, email me with an offer and
I will see about purchasing/trading for them.  (Being a one-lens kind
of guy I have no present use for them :-)

FYI - I have finally hit on the ideal filter solution for my
red-blue anaglyphic, single-lens cameras.  I simply shoot slides
off the computer monitor.  This way I can select the colors, relative
brightness between the red and blue - AND - create whatever shape
mask conceivable.  Wonderfully flawless filters with just the
right color and shape, and so easy to install.

Oh well, long as I'm started.  Yesterday I picked up a Bell-and-Howell
super-8 movie camera at St. Vinnies ($10.00).  It has a large front lens 
taking 58mm filters.  I pulled out the zoom lens (with a little cutting and
rasping), replaced the daylight filter with a red-blue one, mounted it in
reverse on the end of my bellows (formerly a Polaroid 800) and left it
overnight for epoxy hardening.  Tonight I hope to get back to it and
take some photo-macrographic shots.

This one has the advantage over it's predecessor that the filter can be
shifted in or out.  I can get 20-30x magnification on film (determined
by examining a screw with known thread size).  I have the Kodak
technical publication "Photomacography" which is very informative,
but the tables are not very useful since I have no way of determining
my aperture size.  Any suggestions?

Anyway I did produce some beautiful shots of misted goose feathers.
The water droplets at that size are nearly spherical and appear to
be some kind of crystal balls standing right up on the barbs.
Wonderful in 3D.

Paul Kline
pk6811s@xxxxxxxxxxxxxx

Paul Kline
pk6811s@xxxxxxxxxxxxxx


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