Re: [photo-3d] Re: Camera separation in stereo photography

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>I believe Greg is right, for the simple reason that the 1/30
>rule is a _viewing_ constraint, which aims at limiting the
>convergence difference in stereo viewing.
>
>The difference between looking at at 7 feet (about 2 meters)
>distance and looking at infinity (zero convergence) is about
>two degrees.
>(Interpupillary 65 mm divided by distance 1950 mm is 1/30,
>and the tangent of an angle of 2 degrees is also about 1/30).

  Thanks for the extra clarification Abram.
I also like hearing that I am right :)  :)

Greg E.