Re: ATM aerial camera lens

["Kreig McBride" <kmcbride@memes.com>]

Aerial camera lenses of this design are intended to be used with a strong
yello or red filter. Without a filter the chromatic aberrations are
horrible!!  I made a telescope from one of these lenses many years ago and
today it sits in a box, unused.  The actuall aperture is FL/f number.
36"/8=4.5", not the front element diameter.  There are two controls for the
shutter, one to set the springs and one to fire the shutter.
kreig
www.wwu.edu/~skywise/optics/html

-----Original Message-----
From: Bobrobbob@aol.com <Bobrobbob@aol.com>
To: atm@shore.net <atm@shore.net>
Date: Friday, December 17, 1999 8:39 AM
Subject: ATM aerial camera lens


>
>has anyone play with aerial camera lenses for scopes.
>one in particular, I picked up a what is labeled 36 in FL F8 kodak aerial
>camera lens RM718 for a fairchild k 38 camera. It is in the shutter
assembly,
>and lens con now.
>The front element is 6in + area behind retaining rings. rear element is
about
>4 3/4in
>I am guessing some sort of tessar setup with four elements, all air spaced.
>My questions are as follows
>
>how is the shutter fired?
>Can it be used as an F6 lens by removing diaphrams between the two lens
cells?
>how old might it be?
>any radioactive doping of the glass in it?
>
>thanks in advance
>Barry Freedland
>BOBROBBOB@aol.com
>