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spiderless · Unobstructed telescopes
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Group Information

  • Members: 83
  • Category: Telescopes
  • Founded: Sep 25, 2007
  • Language: English
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Activity within 7 days:

1 New Message - New Questions

Description

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

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Re: New Chief
Hi All, For illustration, here is a photograph of the "minimum tilt Schiefspiegler": http://bhs.broo.k12.wv.us/homepage/alumni/dstevick/lampert/Schieffr.jpg
Posted - Mon Jun 29, 2009 5:59 pm
 Guntram Lampert
guntram_lamp...
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Re: Some New Folded Long-Focus Chiefs with Melles-Griot Lenses
... That's what I thought, but, yes, I wanted to confirm it.
Posted - Mon Jun 29, 2009 5:53 am
 Richard F.L.R. Snashall
rflrs2000
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Re: Some New Folded Long-Focus Chiefs with Melles-Griot Lenses
Richard, I simply wanted to show what kind of spot sizes one could expect without tilting the eyepiece. So, yes, I let the optimization algorithm proceed
Posted - Mon Jun 29, 2009 5:48 am
 roger ceragioli
apoachroroger
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Re: Some New Folded Long-Focus Chiefs with Melles-Griot Lenses
... By not specifying the focal surface tilt of 1.2 degrees, are you attempting to optimize it in a particular way?
Posted - Sun Jun 28, 2009 10:23 pm
 Richard F.L.R. Snashall
rflrs2000
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New File
I should have said that the File is called "8in Folded Chiefs." My silly moniker is "Apoachroroger." Cheers, Roger
Posted - Sun Jun 28, 2009 9:10 pm
 Roger Ceragioli
apoachroroger
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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
2008 9 9 18 4 6 11 6 122 31 1 36
2007 1 4 3 1
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