Thank you Henry and Jack, despite the black zone which will increase the secondary obstruction by a (negligible) factor the overall quality of the images is ...
... It's not clear (from the diagram you uploaded) that there will be ANY increase in the secondary obstruction. You showed us the black edge as seen from...
Read about this group almost a year ago, thought I finally take a look. This is a great site for owners of a great scope. Owned a 60mm refractor for many years...
skyquest-telescopes: Welcome and Introduction Page Revised October 2003 1. Introduction and Background The skyquest-telescopes forum was founded in...
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Forum Rules This message, like the "Welcome Message", is sent automatically to new forum members, as well as being sent out automatically each month. The...
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Just started an Astronomy Tinkerer yahoo group. Its for homemade gadgets to help your hobby. Not much on it yet but we got 8 members the first day. Any help...
... You should - atmospheric seeing permitting - be able to use eyepieces as short as 3 or 4 mm. But since the number of times you will have skies that...
From: "ldn1773" <wlomaka@...> ... I concur with Gene's comment about using a 2x Barlow plus a 12mm eyepiece. I have a 12mm UO HD Ortho and it's a great...
... What Gene said. I have the orion $80 Lasermate and almost never use it. My XT10i holds collimation so well it seldom needs to be touched. I'll check it...
... Bill, I own a large number of eyepieces including a 6mm UO HD ortho. It will work very well in your scope giving 200X. Image quality with this eyepiece is...
... eyepiece. I have a 12mm UO HD Ortho and it's a great eyepiece. I often use it with a 2.5x TV Powermate or a 2x shorty Barlow. A 6mm version of that...
... me. ... John Bambury makes (as usual) an excellent point. One of the factors that differs from one person to another depedns on the nature of their...
No one has mentioned but, except for setting the secondary, the little cap that comes with the scope is as accurate as anything for setting the primary. That's...
... Some years back, Tom Hole did a comparison of the various devices (from the simplest and least expensive to the most sophisticated and expensive) and came...
Interesting. I have to collimate my XT12i just about every time I use it. The Orion lasermate deluxe is what I use religiously. Even wheeling it 30 feet from...
Hello, My family has just purchased an XT10. All is great except for two things. 1. The tube is hard for anyone but Dad (me) to carry without adding a ...
... Have a look in our "Photos" Section, at the folder "Bobby's Starhunter, etc", particularly at photos 2 and 3 (IIRC there. Then use the search engine on...
So does mine, but only the primary tilt. The cap is as good as anything for that. My secondary hasn't moved since I set it two years ago. Cliff ... use it. ......
I'm super critical about primary collimation. It dosnt get far off but I "center the dot". Every time I use it. Takes all of a minute. Cliff ... years ago. ......
... Not sure if you checked this, but there are two options in the hidden menu for testing the encoders. One displays degrees, and the other displays the...
New to this forum,have a question that is bothering me recently bought a 10xti assembled it no problem, the object locator azm/alt test showed no action when...
... it ... The reasonng sounds correct. Let us know how long it takes for the replacement to show up. (We like to keep tabs on Orion's customer service, and...
... <g2baraff@...> wrote: But instead of wearing ... the ... shielding ... Hi Gene, I've been wondering how well the dioptrx works. Did you match your Rx...
Could be several things. Could be the controller, the cable between the controller and the base, or the little board that the encoders plug in. The encoder...
... your ... I matched my prescription astigmatism: 1.75 Diopters astigmatism in the eye whose vision is sharpest. (I had been a left-eyed observer all my...
Thanks for the info, Gene. I also have the progressive lens' which are very hard to observe with. I've been thinking about getting a new pair of observing...