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Re: [ATM] Lens after diagonal?

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Subject: Re: [ATM] Lens after diagonal?
From: "Don Clement" <clement.focuser@verizon.net>
Date: Wed, 25 Aug 2004 14:18:07 -0700
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> I've been considering (from a perspective of almost no
> knowledge) the problem of minimizing the secondary
> obstruction in a standard Newtonian design.

One method of minimizing the secondary obstruction would be to use a low
profile focuser with a large non-vignetting opening. The secondary could be
moved  out from the primary and  secondary size could be reduced.

Don Clement
Running Springs, California
http://www.ClementFocuser.com

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- Re: [ATM] Lens after diagonal?
  - From: Gary Fuchs <gary@rcn.com>

References:
- [ATM] Lens after diagonal?
  - From: GARY FUCHS <gary@rcn.com>

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