P3D Take the "Stereo Format" quiz

[fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)]

One of the most important and rather complicated (IMO) issues in stereo
photography is the issue of stereo format.  I am working on an article for
the next "Stereogram" and would like some input from the list.  But let's
start with a simple quiz that will show some of the complications in trying
to define what a stereo format is:

If I claim that I work in the "Realist Format" which of the following 
statements are True?  ("True" does not mean that the statement defines 
the format, just that if I use this format, then the statement must be 
true)

A. I use a Realist camera 
B. I use a stereo camera that follows the C. Progression (5 perforation 
   interlocking images)
C. My film chips are 5 perforations wide
D. I use slide (transparency) film
E. I use 35 mm film
F. My chips are mounted in mounts with appr. dimensions 101 x 41 mm.
G. E but also the windows are appr. 23 x 21 mm wide

If I claim that I work with "Prints", which of the following statements 
are True?

A. I use negative film
B. My final images are on print paper
C. My final image must be viewed with reflected light
D. My R and L images are side by side
E. The spacing of infinity in R and L images must be less than 2.5" 
   (appr. spacing of the eyes)
F. A Holmes' stereoscope could be used to view the stereo image.

If I claim to be working in the "View Master" format, which of the 
following statements are True?

A. I use slide (transparency) film
B. My images have appr. size of 12 x 13 mm
C. My images are mounted in pairs of 7 in this round disc patented by VM 
   in the 30s
D. A View-Master Viewer can be used to view the images and a VM 
   projector can be used to project them
E. The pictures were taken with a VM Personal camera
F. The pictures were taken with any stereo camera that was designed for 
   the VM format (VM Personal, Mikroma, etc.)

Good luck!  Will give my answers (with justification) later...

-- George Themelis


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