btschumy
Vendor - Southern Stars
Reged: 04/13/04
Posts: 1708
Loc: Longmont, CO, USA
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Bill Cook said in another thread:
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That particular model is collimated with eccentric rings, and if collimation is out, you can probably bring it into perfect alignment--for yourself--by just working with one set of rings.
Has anyone found a web page that describes how eccentric rings work and how to adjust them? I need something visual to help me get my mind around it.
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Bill Tschumy
Southern Stars
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btschumy
Vendor - Southern Stars
Reged: 04/13/04
Posts: 1708
Loc: Longmont, CO, USA
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While Googling around I did find this very interesting page. It is a "FireTrucks and Equipment" technical manual and seems to have a wealth of information about optics.
http://www.tpub.com/content/firetrucksandequipment/TM-9-258/index.htm
The info on eccentric rings is on page 4-35.
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Bill Tschumy
Southern Stars
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BillC
on a new path
Reged: 06/04/04
Posts: 4391
Loc: Lake Stevens, WA, USA
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Quote:
Has anyone found a web page that describes how eccentric rings work and how to adjust them? I need something visual to help me get my mind around it.
Navy Rate Training Manual OM 3 & 2 (now reprinted by Dover Press as OPTICS AND OPTICAL INSTRUMENTS). You will also find some information in #5, #6, and # 7 of Amateur Telescope Making Journal--Now published in volume 1 of the Best of Amateur Telescope Making Journal, by Willmann-Bell publishing.
I used some drawings and photos. It is not all inclusive, but then I am saving that for the book. Also, I let my company take over the magazine, and I don't profit from sales of the books, except in that it does not hurt a freelancer to have his name on two, thick, well-respected books.
Hope this helps,
Bill
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William J. Cook, Chief Opticalman, USNR-Ret.
Ophthalmic Tech, Naval Station, Everett, WA
Optical Mechanic, Puget Sound Naval Shipyard
Founder, Amateur Telescope Making Journal
21-year Mgr., Optics Dept., Captain's Nautical Supplies
Optics Mechanic, Ft. Lewis, WA.
Contributing Editor for Numerous Magazines
It's better to be a "has been" than a "never was." But only barely; the pay is about the same!
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