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Re: [ATM] ebay HUGE telescope lens calculations

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Subject: Re: [ATM] ebay HUGE telescope lens calculations
From: "Bob May" <bobmay@nethere.com>
Date: Tue, 9 Nov 2004 09:26:17 -0800
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One quick approximation is the sag of the front of the lens.  At a half
inch, it will tend to be fairly short for a FL.
If nothing else, you will have a nice comet viewer or it may do well as a
camera lens for a large format camera for comet searching.
Bob May
bobmay@nethere.com
http://nav.to/bobmay
http://bobmay.astronomy.net

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References:
- [ATM] ebay HUGE telescope lens calculations
  - From: <rory123@bellsouth.net>

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