Friendly Bob
):-{])) <---- madden@netcom.com madden@svpal.org Remember amateur astronomers: "keep looking for the next Universe"
On Fri, 4 Aug 1995, Jan R. Sugalski wrote:
> I had read that the liquid used in the Sigler lenses was a closely
> guarded secret of Lockheed. Is this true. Perhaps Bob Madden can help us out?
> I would dearly love to find out what it is since the glass used in the rest
> of the lens is supposed to be very common optical glass. I have read that
> a lens could be made for $400 which would rival the finest apochromats
> costing near $5000.
> Jan
>