T3D Re: Visual acuity = 1' of angle?

[john bercovitz <bercov@xxxxxxxxxxx>]

WJC writes:

It's been awhile, so I'm not sure of my sources, but didn't 
Kingslake show stereo could resolve a significantly (whatever 
that means) smaller angle than mono?

Yes, this is actually in a lot of books, not just Kingslake's.
Stereo acuity is maybe ten times better but this is probably
because the retina/brain finds edge positions to a higher
degree of accuracy because it can average an edge over a lot 
of cones.  Edge positions may be the basis of depth perception.

John B


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