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Re: [ATM] How fast is 150mm f/3.3 lensless Schmidt?

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Subject: Re: [ATM] How fast is 150mm f/3.3 lensless Schmidt?
From: "Bob May" <rmay@nethere.com>
Date: Tue, 22 Apr 2008 19:43:09 -0700
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Glass that isn't brittle!!!  I guess that means you can leae out
the flints and the flouritees for a start.
I wil note that the high Nd of a flint does make for a more
gentle curve than with a lower index but you also fight the
probability of the glass being more fragile to the bending
problem.
Bob May

rmay at nethere.com
http: slash /nav.to slash bobmay
http: slash /bobmay dot astronomy.net


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References:
- Re: [ATM] How fast is 150mm f/3.3 lensless Schmidt?
  - From: Dominic-Luc Webb <dlwebb@canit.se>

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