Re: Stereo Acuity

[bercov@xxxxxxxxxx (John Bercovitz)]

Bob Howard wrote:

>> In vision there is the anomoly that we an see things that cross the
>> retina, e.g. a telegraph line in the distance, that no way could be
>> resolved based on its diameter at the distance!! BobH

Jim C wrote:

> Perhaps because it gets blurred out by the optics of the eye to
> the point where it's resolveable by the retina?  I guess it
> would have to be high-contrast...

Even a sub-resolvable object will affect the light intensity levels  
by diffraction if nothing else.  This just shows the eye is able 
to discern low contrast, doesn't it?

John B


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