Hello to the group, I've just aquired a 13.1" f4.58 Dob. I am a physicist by education and an engineer by trade. I have been into astronomy for many years but...
Welcome to the group! It has been my opinion that lasers are nice for that final tweak after having collimated with your normal tools. They seem especially...
If you already have your system very close to properly collimated, the laser with the cut out...so your can see the return target from the primary end of the...
Welcome to the group. I'm also a physicist by training, and a nerdy engineer by trade. We both turned to the dark side, I guess. With that fast scope, a...
... I have a bit of experience with Tectron's tools and laser collimators. Since you have a Cheshire already, you don't need a Barlowed laser. The Cheshire's...
Amen Vic, But for the more anal retentive among us, the Barlowed laser does make for a "quick and dirty" tool for checking and touching up the primary...
... I have both of Jim Fly's new tools as well. The Infinity II is an excellent autocollimator, plenty bright to track the focal plane and inverted images, and...
Hi. I'm new to the group. I have been doing binocular Astronomy for about 10 months. I recently acquired a used 4" 680mm f.l. Wm.-Yang Megrez SD Refractor...
Hello People My name is Rob and I'm a newbie to this group and fairly new to astronomy. I live in northern NSW, Australia. which currently places Neptune & ...
That will be quite an assortment. I'm interested in the off-axis Newtonian. Where are you getting that from? Are you getting it for planetary/lunar ...
My guess is you've passed right over them without realizing it. I haven't looked for them, but had the same problem looking for the Ring Nebula with my 6" ...
Hi. The off-axis was to be my first telesope. The idea was to get a newtonian with Refractor quality at Newtonian prices. With a focal length of 1020 mm it...
Be sure and post the results of some of your observations. ... __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. ...
Thanks Larry for your reply, I kinda figured I've probably looked over them many a time without realizing it. I guess I'll just keep searching and step up...
There's been quite a bit of discussion recently about the Orion contra the DGM off-axis telescope on the off-axis web-site. My DGM hasn't arrived yet but my...
Thanks for the comment. As you might have guessed I'm more inclined to talk than to write. It seems hard to build off-axis telescopes of any great size so...
I have had a Celestron 4.5" newtonian for years. 3 months ago, my girlfriend, (Bless her Heart) bought me one of those 8" newtonians from Ebay. I have used it...
Star test it first. If it really needs work, consider contacting Spectrum Coatings and talking to them about the quality of the glass, the possibility of ...
All I have done to this point is collminate (sp?) my scopes. Where can I get some info on how to star test this new scope? ... optics ... taken ... scope ... ...
Some fine mirrors are available from Discover telescopes, and University Optics, as well as others. ... __________________________________ Do you Yahoo!? Check...
Offense? Of course not! Just didn't think your URL's were addressing the actual question, which was how to evaluate optics using a star test. Related to but...
Thank you both, very much.... I actually found some very good information on collimation. I will star test this evening and let you know the results... Thank...
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