· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> ATM, Optics and DIY Forum Previous   Index   Next   Flat   starquake member Reged: 02/02/08 Posts: 191 Loc: Nádasdladány Re: A new refractor concept       07/01/09 01:29 AM Edit   Reply   Quote   Quick Reply:   Btw, talking about long focuses, how about Huygens' 210 foot air telescope? That had about f/290. Guess it was aberration-free. I also remember that I've read about a guy who competed with Huygens and built a 400 foot air telescope. But I'm unsure. On the other hand, is there enough contrast in such a long focus telescope? -------------------- "At night astronomers agree." /Matthew Prior/ "Astronomers, like burglars and jazz musicians, operate best at night." /Miles Kington/ 10x50, 114x900, 300x1500 My astronomical sketches: Graphite Galaxy Don't take my words too seriously, I might be wrong. And sorry for my English. Post Extras       Entire thread Subject Posted by Posted on A new refractor concept Crayfordjon 06/23/09 03:34 AM Re: A new refractor concept Charl   06/27/09 04:56 AM Re: A new refractor concept Gene Baraff   06/27/09 08:58 AM Re: A new refractor concept tim53   06/27/09 09:12 AM Re: A new refractor concept DAVIDG   06/27/09 12:12 PM Re: A new refractor concept Gene Baraff   06/27/09 01:52 PM Re: A new refractor concept Gary Fuchs   06/27/09 02:32 PM Re: A new refractor concept Crayfordjon   06/27/09 02:58 PM Re: A new refractor concept Crayfordjon   06/27/09 03:05 PM Re: A new refractor concept Crayfordjon   06/28/09 01:29 AM Re: A new refractor concept Andy Taylor   06/28/09 04:44 AM Re: A new refractor concept Crayfordjon   06/28/09 05:04 AM Re: A new refractor concept Crayfordjon   06/28/09 05:06 AM Re: A new refractor concept Crayfordjon   06/28/09 05:14 AM Re: A new refractor concept Crayfordjon   06/28/09 05:45 AM Re: A new refractor concept Crayfordjon   06/28/09 05:46 AM Re: A new refractor concept Crayfordjon   06/28/09 05:50 AM Re: A new refractor concept Crayfordjon   06/29/09 04:51 AM Re: A new refractor concept Crayfordjon   06/29/09 05:01 AM Re: A new refractor concept Crayfordjon   06/30/09 02:23 AM Re: A new refractor concept Ed Jones   06/30/09 11:35 AM Re: A new refractor concept Crayfordjon   06/30/09 01:36 PM Re: A new refractor concept Crayfordjon   06/30/09 01:44 PM Re: A new refractor concept Gary Fuchs   06/30/09 02:03 PM Re: A new refractor concept Crayfordjon   06/30/09 01:53 PM Re: A new refractor concept Crayfordjon   06/30/09 02:07 PM Re: A new refractor concept starquake   07/01/09 01:29 AM Re: A new refractor concept Crayfordjon   07/01/09 03:03 AM Re: A new refractor concept Crayfordjon   07/01/09 03:06 AM Re: A new refractor concept Gary Fuchs   07/01/09 11:24 AM Re: A new refractor concept George Kiger   07/01/09 11:32 AM Re: A new refractor concept Gary Fuchs   07/01/09 12:17 PM Re: A new refractor concept Crayfordjon   07/02/09 04:37 AM Re: A new refractor concept Crayfordjon   07/02/09 04:58 AM Re: A new refractor concept Crayfordjon   07/03/09 03:03 AM Re: A new refractor concept Crayfordjon   07/03/09 03:05 AM Re: A new refractor concept Crayfordjon   07/03/09 03:06 AM Re: A new refractor concept Crayfordjon   07/03/09 03:10 AM Re: A new refractor concept Crayfordjon   07/03/09 03:40 AM Re: A new refractor concept nytecam   07/05/09 04:19 AM Re: A new refractor concept arpruss   07/05/09 02:28 PM Re: A new refractor concept Crayfordjon   07/06/09 04:48 AM Re: A new refractor concept arpruss   07/06/09 12:22 PM Re: A new refractor concept Crayfordjon   07/07/09 02:39 AM Re: A new refractor concept Crayfordjon   07/07/09 02:55 AM Re: A new refractor concept arpruss   07/07/09 09:57 AM Re: A new refractor concept Crayfordjon   07/07/09 11:09 AM Re: A new refractor concept Crayfordjon   07/07/09 11:34 AM Re: A new refractor concept Crayfordjon   07/08/09 10:50 AM Re: A new refractor concept nytecam   07/13/09 10:16 AM Re: A new refractor concept Crayfordjon   07/13/09 01:18 PM Re: A new refractor concept Crayfordjon   08/07/09 10:45 AM Re: A new refractor concept Crayfordjon   08/07/09 10:49 AM Re: A new refractor concept Crayfordjon   08/07/09 10:50 AM Re: A new refractor concept Crayfordjon   09/30/09 03:39 AM Re: A new refractor concept Crayfordjon   07/01/09 03:21 AM Re: A new refractor concept Crayfordjon   07/01/09 03:59 AM Re: A new refractor concept Crayfordjon   06/30/09 02:03 PM Re: A new refractor concept starquake   06/30/09 03:26 AM Re: A new refractor concept grendel   06/30/09 04:19 AM Re: A new refractor concept omnivorr   06/30/09 08:43 AM Re: A new refractor concept tim53   06/30/09 10:18 AM Re: A new refractor concept Crayfordjon   06/28/09 01:31 AM Re: A new refractor concept Crayfordjon   06/28/09 01:55 AM Re: A new refractor concept DAVIDG   06/27/09 12:15 PM Re: A new refractor concept DAVIDG   06/27/09 12:22 PM Re: A new refractor concept Crayfordjon   06/27/09 01:37 PM Re: A new refractor concept Crayfordjon   06/27/09 01:49 PM Re: A new refractor concept GJJim   06/27/09 01:32 PM Re: A new refractor concept Gene Baraff   06/25/09 02:17 PM Re: A new refractor concept nytecam   06/24/09 06:13 PM Re: A new refractor concept Crayfordjon   06/25/09 02:43 AM Re: A new refractor concept Crayfordjon   06/25/09 02:50 AM Re: A new refractor concept GJJim   06/25/09 09:11 AM Re: A new refractor concept John Carruthers   06/25/09 03:00 AM Re: A new refractor concept Crayfordjon   06/26/09 08:44 AM Re: A new refractor concept Crayfordjon   06/26/09 09:03 AM Re: A new refractor concept Crayfordjon   06/26/09 09:13 AM Re: A new refractor concept Crayfordjon   06/26/09 09:20 AM Re: A new refractor concept Crayfordjon   06/26/09 09:23 AM Re: A new refractor concept Crayfordjon   06/26/09 10:49 AM Re: A new refractor concept Crayfordjon   06/26/09 10:52 AM Re: A new refractor concept Crayfordjon   06/26/09 11:07 AM Re: A new refractor concept Crayfordjon   06/26/09 11:09 AM Re: A new refractor concept Andy Taylor   06/26/09 12:41 PM Re: A new refractor concept Gene Baraff   06/26/09 01:32 PM Re: A new refractor concept Andy Taylor   06/26/09 01:56 PM Re: A new refractor concept nytecam   06/26/09 01:50 PM Re: A new refractor concept Crayfordjon   06/26/09 11:09 AM Re: A new refractor concept Crayfordjon   06/25/09 03:35 AM Re: A new refractor concept rwiederrich   06/25/09 12:44 PM Re: A new refractor concept Ed Jones   06/25/09 09:21 AM Re: A new refractor concept Crayfordjon   06/25/09 03:19 AM Re: A new refractor concept Crayfordjon   06/25/09 02:53 AM Re: A new refractor concept Crayfordjon   06/25/09 03:06 AM Re: A new refractor concept robboski2004   06/23/09 06:01 PM Re: A new refractor concept Crayfordjon   06/24/09 03:32 AM Re: A new refractor concept Crayfordjon   06/24/09 04:26 AM Re: A new refractor concept Crayfordjon   06/24/09 10:57 AM Re: A new refractor concept rwiederrich   06/24/09 05:58 PM Re: A new refractor concept George Kiger   06/24/09 01:28 PM Re: A new refractor concept DAVIDG   06/24/09 04:24 PM Re: A new refractor concept Gene Baraff   06/25/09 09:40 AM Re: A new refractor concept DAVIDG   06/25/09 10:44 AM Re: A new refractor concept Crayfordjon   06/25/09 12:20 PM Re: A new refractor concept Crayfordjon   06/25/09 01:19 PM Re: A new refractor concept Crayfordjon   06/25/09 01:32 PM Re: A new refractor concept rwiederrich   06/25/09 02:45 PM Re: A new refractor concept DAVIDG   06/25/09 03:32 PM Re: A new refractor concept rwiederrich   06/25/09 05:36 PM Re: A new refractor concept Crayfordjon   06/26/09 02:51 AM Re: A new refractor concept KI4YUN   06/26/09 07:51 PM Re: A new refractor concept Crayfordjon   06/27/09 03:48 AM Re: A new refractor concept grendel   06/27/09 04:13 AM Re: A new refractor concept Crayfordjon   06/26/09 03:10 AM Re: A new refractor concept Crayfordjon   06/26/09 03:21 AM Re: A new refractor concept Crayfordjon   06/26/09 03:25 AM Re: A new refractor concept Dick Parker   06/25/09 04:42 PM Re: A new refractor concept DAVIDG   06/25/09 02:13 PM Re: A new refractor concept Crayfordjon   06/25/09 01:47 PM Re: A new refractor concept Crayfordjon   06/25/09 01:52 PM Re: A new refractor concept Gary Fuchs   06/25/09 02:04 PM Re: A new refractor concept Crayfordjon   06/25/09 01:56 PM Re: A new refractor concept Gary Fuchs   06/25/09 02:19 PM Re: A new refractor concept Crayfordjon   06/25/09 10:22 AM Re: A new refractor concept Gary Fuchs   06/25/09 10:19 AM Re: A new refractor concept Gene Baraff   06/25/09 10:40 AM Re: A new refractor concept DAVIDG   06/24/09 04:26 PM Re: A new refractor concept GJJim   06/24/09 11:27 AM Re: A new refractor concept tim53   06/24/09 01:26 PM Re: A new refractor concept John Kemp   06/23/09 05:15 AM Re: A new refractor concept Crayfordjon   06/23/09 11:11 AM Re: A new refractor concept *DELETED* Crayfordjon   06/23/09 01:23 PM Re: A new refractor concept Crayfordjon   06/23/09 01:27 PM Extra information 20 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