... Hi John, Let me throw out a few thoughts before I mention what I like in my XT10. First of all here are a few helpful articles on the TeleVue web site, you...
Gene, I couldn't take a picture through my focuser cap so I'll try to explain. I put my focuser travel half way between both stops and collimated the donut...
skyquest-telescopes: Welcome and Introduction Page Revised October 2003 1. Introduction and Background The skyquest-telescopes forum was founded in...
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Posting Photos Please do take full advantage of the captioning possibilites that exist only in the "Photos" section to add labels and explanatory information...
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Our new book, Illustrated Guide to Astronomical Wonders <http://www.oreilly.com/catalog/9780596526856/>, is finally available. We intended to do this book soon...
Is this while using a barlowed laser collimator? It's a Crayford...Did you have the tension thread snugged up a bit, so the draw tube (in which your collimator...
To see if your focuser is "way off" on it's alignment (uncommon on such scopes) remove the barlow back, and use the primary beam. Tighten the collimator in the...
... That is a typo on the Hands On Optics site - there is no such beast as a Pentax XW 12mm. 10mm and 14mm are as close as they get. That 12mm EP is out of...
From: "Bill Moore" <wrm2nd@...> ... Where can you get a Pentax XW at half the price of a Radian? All the prices I've seen for the 1.25" format XWs are in...
... Congratulations. I know you put in a lot of time on this one, and I'm glad to know that it is finally out. The list of advisers the Thompsons used...
... I've seen some of the answers that you are starting to receive. Perhaps you could write more about your procedure from the beginning of the collimation, ...
... Phil, Thank you very much for that writeup- I'm going to bookmark that as I'm hoping to eventually move to a set of all premiums. John Wunderlin Mineral...
Be sure to check the Meade series 5000 uwa. I have one of these - 18mm. It is to notch quality, barely distinguishable from Nagler, and I like the colors...
... I checked my focuser alignment on my XT10i when I had the secondary out to put on the washer and finger ajustable collimation screws. It was within less...
... Guys, I only have the collimation cap (photo cap replica)that came with the xt10i. I do not have a laser collimeter(origional owner said he through the...
... Yes, the collimation cap is decent and far more accurate than uncollimated laser collimator. Collimation issues aside, your issue has nothing to do with ...
Thanks Gene and Robert, I just requested a review copy, but if I don't receive one, I'll be buying the book anyway. This is the type of observing books I am ...
... I'll back Gene up on this - I've seen the preliminary chapters and it is very well done! If I don't get a copy, I'll put in on my XMas list for sure!!! ...
... This may be an inside joke: RapidEye is (AFAIK) a part of the advisory and review committee the Thompsons assembled for this book, and he HATES to be...
Just uploaded two illustrations that explains the root cause of the issue. Your drawtube axis does not coincide with your focuser axis. Refer to my photo...
... Much!!! =-) I'm not saying there weren't respectable people helping - there were! Some of the sharpest eyeballs I know of were on it (I won't say who ...
... How can you tell that this is the root cause, rather than one of several possible causes? Not nit-picking. Just wondering how you were so quickly able to...
... <jasonx007@> ... Gene, maybe I should not have been too assertive in my last post. However, assuming the focuser is rigid the drawtube does not wobble (no...
... But that's just the point: those things you have assumed away might indeed be contributing. How can you know without further discussion of these ...
... I never intended to end the discussion. I presented a theory that I strongly believe to be the root cause. Others are welcome to present their theories...
... I have to take issue with this. First of all I don't consider the Collimation Cap as being the only tool you need. How can you adjust the position and the...
I'm with you Phil. I'd politely contend that there is strong consensus among collimation gurus that a collimation cap alone will not give optimal collimation....
... Alright. Here is an alternative suggestion, based on the fact that flydude says he has never collimated his secondary and so we don't know how far off it...
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