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Ron B[ee]
Tyro
Reged: 04/27/03
Posts: 4719
Loc: CA
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The following links will take you to archived threads containing resources of special significance. The Refractor forum is one of the most popular  forums and has a number of threads too useful to allow to fade away and buried under a mountain of other threads. I've "gathered" a few of the older (or less active) resource rich threads here, with links for quick reference to those threads. As other sticky threads mellow with age, they too will be added to this "Focus" post.
How to collimate a refractor
Edited by Joad (02/18/07 12:39 AM)
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Starman27
professor emeritus
Reged: 01/29/06
Posts: 572
Loc: Illinois, Iowa
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Ron,
Thanks for the short refractor comparison table. Just what I needed. I'm looking to replace an old Orion 80 with an up to date model for the March eclipse.
Enjoy the dark,
Herman
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Enjoy the dark,
Herman
Meade
14 LX200 GPS SMT
12 LX200 GPS
7 LX200 Maksutov
ETX 125
TAK FS128 NSV
Sky 90II
Lunt LS60ThaDS BF1200
Canon 5D Mark II
Illinois
Iowa
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Art Bianconi
Post Laureate
Reged: 03/06/06
Posts: 4659
Loc: Delaware River Valley, New Jer...
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I Found you just in time!
I love building telescopes but until tonight, they were all reflectors.
Today I ordered a A. Jaegers catalog# 13B 1159.from Surplus Shed. 110mm by 1069 F/L. Should make a great planetary scope, me thinks.
These are the non-cemented crown and flint to make the ". . legendary A. Jaegers Optics objective!" SS says that these can be cemented, air spaced or taped together. Edge thickness is 21mm (when together).
I barely understand what they are saying but am committed to learning. Your post makes it easier.
Thanks!
Art
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“Everything is on its way to somewhere. . . . . everything!"
____________________ George Malley (John Travolta)
________________________ "Phenomenon"
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Kim Miau
Pooh-Bah
Reged: 07/17/06
Posts: 1177
Loc: Australian National University
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May I know that why is the access denied? I can't access the refractor comparison table.
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-Robin Lee
QHY CCD
My Astronomy Blog - http://www.astronomynotes.net
Meade 8" LX90 + LPI + QHY5 + Denk's Power x Switch S2 Diagonal
More equipments @ here
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Joad
Wordsmith
Reged: 03/22/05
Posts: 12862
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The refractor comparison table has been removed at the request of its original poster.
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12.5 inch Portaball + Osypowski platform
LX10
Oberwerk BT100 45° binocular
Orion binoviewer + ScopeStuff extender (so it focuses at f/4.9)
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Kim Miau
Pooh-Bah
Reged: 07/17/06
Posts: 1177
Loc: Australian National University
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Quote:
The refractor comparison table has been removed at the request of its original poster.
Oh.. too bad. May I know where can I locate the thread again?
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-Robin Lee
QHY CCD
My Astronomy Blog - http://www.astronomynotes.net
Meade 8" LX90 + LPI + QHY5 + Denk's Power x Switch S2 Diagonal
More equipments @ here
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Scott Beith
SRF
Reged: 11/26/03
Posts: 37114
Loc: Frederick, MD
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Really long web link that makes everyone scroll left and right
C6R thread
Edited by Don W (08/20/07 08:51 PM)
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Dr Morbius
scholastic sledgehammer
Reged: 02/06/07
Posts: 1720
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It's not often at all when you have to collimate a refractor, but when you need to, you need to. Thanks!
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Meade ETX-125
NightFire 6" f/8 Refractor with Moonlite focuser
Meade 14" LX200 S/C
D&G 10" f/15 Refractor with Parallax Mount
Little Giant 11x70mm Binos
I'm afraid of dying, but I've learned to live with it. ......Steve Perry
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