[MF3D.FORUM:588] Viewer divergence

[narjan@xxxxxxxxxxxx]

Oh, no! was my recent,written-with-a-bad-cold posting so dense and un-intelligeble

that it started an avalanche of "un-subscribes"?

And now my simple interpretation of divergence: When you view a stereocard in a

stereoscope, you are effectively looking through the two "inside" halves of the viewing

lens pair ,which bends the light path, which allows you to view an image pair with a

greater separation than your eyes have.( 3 to 3.5 inches for a common stereocard)

This principle and its reverse must also apply to slides in a viewer. Besides, having

an interoccular adjustment on your viewer gives you something else to play with.

 

Regards,

John Billingham