Ron B[ee]
Tyro
Reged: 04/27/03
Posts: 4720
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
Carpal Tunnel
Reged: 01/29/06
Posts: 2865
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
Illinois ROR
Iowa Skyshed POD
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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: 1261
Loc: Malaysia
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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 - Cyclops Optics
Meade 8" LX90
QHY5L-II + IMG0H + QHY8L
Have access to...
Mewlon 300 + EM500
TMB 175 f/8 + Gemini G41
And... bad weather.
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Joad
Wordsmith
Reged: 03/22/05
Posts: 18002
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The refractor comparison table has been removed at the request of its original poster.
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Kim Miau
Pooh-Bah
Reged: 07/17/06
Posts: 1261
Loc: Malaysia
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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 - Cyclops Optics
Meade 8" LX90
QHY5L-II + IMG0H + QHY8L
Have access to...
Mewlon 300 + EM500
TMB 175 f/8 + Gemini G41
And... bad weather.
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Scott Beith
SRF
Reged: 11/26/03
Posts: 42898
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: 3482
Loc: ManorvilleNY-but not for long
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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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NightFire 6" f/8 Refractor with Moonlite focuser
Meade 7" LX200 GPS Mak
Meade 16" LX200 GPS S/C
D&G 10" f/15 Refractor with Parallax Mount
Little Giant 11x70mm Binos
"The Beyondness of Things" By John Barry - My favorite observing music
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