[photo-3d] Tri-Delta Beamsplitter

[Bill C Walton <bill3dbw3d@xxxxxxxx>]

From: Bill C Walton <bill3dbw3d@xxxxxxxx>

I have one of these fine instruments, including the attachment used on a
projector to project the slides in stereo.  I bought it in 1973 and it
was my first stereo equipment.  I used it on a Canon FT, which I bought
in Vietnam during my second tour 1967-68.  I used it, of course, for
making stereo cards and made the first 200 in my collection with this
equipment.  Since the images are long and narrow I enlarged the negatives
to make the proper size images for stereo cards.  This involved a little
bit of planning in the composition as much of the negative was not
usable, due to the enlargement procedure.  This is somewhat like the
current problem that stereo card makers have who use RBTs (on a much
cheaper scale) They cannot use all of the image on  their negatives
unless they make the images somewhat undersized, compared to most stereo
card images.  (I can't swear this is true, since I don't own a RBT, but
it is according to several stereo card makers ) 

 I used the Tri-Delta for three years and even made 3 rolls of stereo
slides, including the 1976 Freedom Train. But I decided it wasn't
practical for my type of stereography.  I was shooting military images at
the time and the tiny viewfinder made it difficult to follow, for
example, Rangers on the Bayonet Assault Course where everyone including
the stereographer is on the run.

I then "upgraded" to a Duplex Super 120 since it had a bit more practical
negative size for making Stereo cards.  But it didn't take me long to
realize that the small lens separation limits that camera for what I want
to use it for. It is a fine stereo portrait camera, but not suited for
the stereos that I make.  I ran across a Realist Manual for $5 at a Book
Discount Store and bought it.  After reading it through several times I
decided that this might be what I had been searching for.  In Apr 1978 I
bought a used Realist for $100 and have been happily making stereo cards.
 

After I bought a TDC 716 projector for $5 at a attic sale in 1985 I shot
a couple of rolls of slides, but decided that stereo cards is still my
weapon of choice.  I shoot enough slides to enter and support the Stereo
Exhibitions.

After looking at what the Tri-Delta sold for on Ebay maybe I should
consider putting my Tri-Delta Kit up for sale.

BILL C WALTON
"ILSJAEL"
BILL3DBW3D@xxxxxxxx
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