Re: More camera ideas and questions

["Paul A. Lehman" <palehman@xxxxxxxxxxxxx>]

Brian Reynolds wrote:

> Is there any reason not to put the lenses at the ortho spacing and let
> the window fall where it will?  I seem to remember doing these
> calculations a while ago, but I don't have my notes or the formula
> handy.  Given that the 4x5 lens I'd be most likely to use has a
> shutter that is 3 inches in diameter getting a 75mm spacing is more
> likely.

This is what I did with my 5x7 camera, placed the
lenses as close as their shutters would permit (~75
mm). I can't tell you if the window ended up being
proper or not as Joel has the transparencies in the LF
folio (at its been months and months and months since
I've seen them last). Maybe he can tell you if they
look correct. Interestingly, almost all of the antique
stereo cameras that are close to MF (like the Kodak
Stereo and Brownie Stereo, c1910) had lenses place
80-85 mm apart.

Paul A. Lehman