P3D Stereo window in VM format

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

A note to Eddie Bowers:  Welcome to the photo-3d list!!!  (I know 
Eddie from his postings in the View-Master list).

In practical terms the stereo is set by cropping (in prints usually) 
or masking the image.  So shifting the film chips under a fix mask 
will change the stereo window.  To do that with the View Master you 
must be able to shift the chips horizontally.  From what I understand 
this is not easy or possible with View Master reels.

The View-Master Stereomatic projector has another "convenient" feature 
that makes control of the stereo window in projection nearly 
impossible:  The focus and convergence are linked so when you focus 
the right and left images slide w/respect to each other.  This is very 
annoying!  If you have an image with too wide separation that causes 
eyestrain, you cannot bring the two images closer together because 
they will then be out of focus!

Many I recommend that you try Realist-format or 2x2 stereo slides?

George Themelis