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spiderless · Unobstructed telescopes

Group Information

  • Members: 124
  • Category: Telescopes
  • Founded: Sep 25, 2007
  • Language: English
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Activity within 7 days:

6 New Messages - 1 New Photo - 1 New File - New Questions

Description

A discussion group on schiefspieglers, Herschellian, CHiefspieglers, Yolos, off-axis Newtonians and other such scopes.


Dick Buchroeder modified his standard 6 inch Newtonian into a Chief.

Most Recent Messages

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Dick's Chief...!
Looks really nice! It'd be great if we could hear about a comparison between the formentioned Newt form, and the Chief- could you persuade him? Mark
Posted - Sun Nov 8, 2009 3:14 am
mdhopt53
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Re: Coma Free Chief
Please don't get me wrong, I'm not saying they can't be done easily, just that it took me a week to figure out the variables to do a 6" F/25 concave mirror!
Posted - Tue Nov 3, 2009 2:04 pm
mdhopt53
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Re: Coma Free Chief
Never said that, I never used the planetary rig. I made flats in batches of 50-100 at a time, with generally 6 spindles going. I averaged one in 15 minutes to
Posted - Tue Nov 3, 2009 12:58 pm
mdhopt53
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Re: Coma Free Chief
Maybe your mean doing flats on a large planetary polishing machine then yes you're right, a flat is fairly straight forward. Doing a flat or one of these long
Posted - Mon Nov 2, 2009 3:30 pm
Ed
opticsed
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North East Astronomy Forum 2010
The dates for NEAF 2010 have been set for Apr 17th-18th. Typically there is a seperate imaging forum the day prior to the Saturday and Sunday exhibits. Save
Posted - Mon Nov 2, 2009 11:30 am
"Mr. Wizard!"
artbianconi...
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 14 79 9 17 55 43 25 118 129 94 7
2008 9 9 18 4 6 11 6 122 31 1 36
2007 1 4 3 1
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