Hi Warren:
> Is infinity curved or is is flat?
How about: Infinity is a distance that when focused on has more distant
objects possessing trivial circles of confusion. So, it has trivial depth.
I suppose that one could theoretically have a lens long enough that infinity
would be beyond Earth's moon. I wonder how long that lens would have to be
and if Saddam Hussian would buy it to convert it to a long range cannon?
Gary Reese
Las Vegas, NV
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