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Re: Cosmic Challenge

  • From: John Bercovitz <bercov@xxxxxxxxxxx>
  • Subject: Re: Cosmic Challenge
  • Date: Mon, 19 Oct 1998 08:15:50 -0700 (PDT)
> Near Point: 25 miles (1584000 inches)
> Far Point: 1.5 * 10^196 miles (WAG)
> Focal Length: 80mm
> OFD: 2.7mm
[...] 
> That gives me a camera separation of 52,800 inches, or 8/10ths of a mile.
[...]
> Maybe there's someone else on the list
> who is more familar with the Bercovitz forumula?

Spicer?  8-)

Actually, if infinity is the far distance, then MAOFD is supposed
to devolve to the 1 in 30 rule.  Which says that you got exactly
the right answer, 25 mi/30 ~ 0.8 miles.

John