[photo-3d] Viewer vs. projection (was: Base Calculator)

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

After some further thought I do not see any reason
why the viewer is more forgiving than projection.
Some viewers do not have interocular adjustment.
With my Ekeren viewer (fixed interocular) I cannot 
fuse stereo slides with infinity too far apart.  
Projectors also have interaxial adjustment.

But too much deviation is not IMO too serious of
a problem either in projection or the stereo viewer.
Only the far distance cannot be fused... and you
don't have to look at it... and if you do, you just
cannot fuse it. Vertical misalignments and rotation
errors are much more serious. These bother me both
in projection and in a viewer.

George