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Re: Close-up cameras

  • From: P3D John Bercovitz <bercov@xxxxxxxxxxx>
  • Subject: Re: Close-up cameras
  • Date: Tue, 4 Jun 96 08:39:53 PDT
John R requested:

> Would it be possible to describe that further? I'm having
> trouble visualizing it.

I don't remember how Burder did it but I think it was the 
same way Ferwerda did it back in the late 1960s:



                         __________
                        /          \      front cell
                        \__________/
                        ____________       shutter
                        __ ______ __     twin apertures
                         __________
                        /          \       rear cell
                        \__________/
                    /        /\        \ 
                   /        /  \        \
                  /        /    \        \     mirrors
                 /        /      \        \
                /                          \






             ______________       ______________    film
 

The twin apertures were on a waterhouse stop setup.  So you
could insert different apertures and different spacings.

John B


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