TIP: Click on subject to list as thread! ANSI
echo: atm
to: ATM
from: rflrs{at}rcn.com
date: 2002-12-20 01:23:20
subject: ATM Petzval Design
From: "Richard F.L.R. Snashall" 
To: ATM List 
Reply-To: "Richard F.L.R. Snashall" 


Is a Petzval Design normally this long:

        http://users.rcn.com/rflrs/fpl_hext1-15x.len

If so (f/8.5 length for f/6 telescope), why is it liked so much?

        Rick S.

--- BBBS/NT v4.00 MP
* Origin: Email Gate (1:379/1.100)
SEEN-BY: 633/267 270
@PATH: 379/1 633/267
SOURCE: echomail via fidonet.ozzmosis.com

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.