Hyperstereo applications of the 1/30 rule

[P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>]

>But George, it doesn't follow YOU as it rotates, or even Greece for that 
>matter, it follows the Earth. So, the 30:1 figure would pretty much still hold.

Bill, I told you I never got into Astronomy because of 3d!

A quick comment regarding possible misapplications of the 1/30 rule (not
much to do with the moon):

The 1/30 and similar rules aim in producing a stereo pair that has a
certain amount of on-film deviation.  For hyperstereos, the 1/30 rule where
the closest subject is at 30 times the interocular distance and there is
also infinity present, will result in the same amount of on-film deviation
as a regular stereo with the closest object at 7 feet and infinity present.

If there is no infinity present, you will get less on-film deviation.

Practical example:  Suppose you are shooting fireworks.  The 1/30 rule will
make the firework burst separate from the background (stars?) but
might not give you adequate depth in-between the burst or different bursts
within a small area.

George - Stereo lunch break is over, back to work!


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