[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [ATM] A new flat-field anastigmatic aplant?

To: vladimir <svla@isp.com>
Subject: Re: [ATM] A new flat-field anastigmatic aplant?
From: Otterstedt@t-online.de
Date: Sun, 28 Aug 2005 00:00:10 +0200
Cc: atm@atmlist.net
In-Reply-To: <000801c5ab8f$b4878320$b178fb04@Handsome>
List-Archive: <http://home.simoivanov.com/pipermail/atm>
List-Help: <mailto:atm-request@atmlist.net?subject=help>
List-Id: The Amateur Telescope Makers List <atm.atmlist.net>
List-Post: <mailto:atm@atmlist.net>
List-Subscribe: <http://www.atmlist.net/mailman/listinfo.cgi/atm>,<mailto:atm-request@atmlist.net?subject=subscribe>
List-Unsubscribe: <http://www.atmlist.net/mailman/listinfo.cgi/atm>,<mailto:atm-request@atmlist.net?subject=unsubscribe>
References: <000801c5ab8f$b4878320$b178fb04@Handsome>
Reply-To: heiner@otterstedt.de
Sender: atm-bounces@atmlist.net
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; de-AT;rv:1.7.3) Gecko/20040910

Hi Vladimir,

> Never heard of this kind of arrangement

nor did I ;-)

I tried it in OSLO. Is it this, what you meant?
http://www.otterstedt.de/atm/tmp/vlad.len

interesting idea, but I'm a bit concerned about the
obstruction of the light cone on its way back from
the tertiary to the focal plane. Especially because
the secondary is reflective on that side...
Nonetheless, a very interesting idea!

Ciao, Heiner


_______________________________________________
ATM mailing list http://www.atmlist.net/

Follow-Ups:
- Re: [ATM] A new flat-field anastigmatic aplant?
  - From: "vladimir" <svla@isp.com>

References:
- [ATM] A new flat-field anastigmatic aplant?
  - From: "vladimir" <svla@isp.com>

Prev by Author: [ATM] Thermals in Reflecting Telescopes, Adler Rx, Version-2
Next by Author: Re: [ATM] Why Lurie-Houghton telescope very rare in the ATM
Prev by thread: Re: [ATM] A new flat-field anastigmatic aplant?
Next by thread: Re: [ATM] A new flat-field anastigmatic aplant?
Index(es):
- Author
- Thread