Re: [ATM] Re: Aero Ektar Coma Corrector?

[Andy Saulietis <iss@pvtnetworks.net>]

Re aerial cam lenses,


>As for f:4 lenses for 4x5 cameras, they are scarce,

I bought a couple of 300mm f4 Perkin-Elmer aerial camera lenses
about 20 years ago..these were for 70mm format. Both were
excellent with my 20 x 16mm CCD camera. One of these ended up
as a star field simulator in my optics lab at NASA, I still have & use
the other one.


>The lenses we all want are the ones on the Keyhole satellites, but
>they're doubtless some sort of exotic aspherics.

I think these are ~48" telescopes but may incorporate wide angle lenses as 
well.
They have spare optics for these (I think).





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