Posting Photos Please do take full advantage of the captioning possibilites that exist only in the "Photos" section to add labels and explanatory information...
skyquest-telescopes@y...
Feb 1, 2009 12:47 pm
41624
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...
skyquest-telescopes@y...
Feb 1, 2009 12:47 pm
41625
skyquest-telescopes: Welcome and Introduction Page Revised October 2003 1. Introduction and Background The skyquest-telescopes forum was founded in...
skyquest-telescopes@y...
Feb 1, 2009 12:47 pm
41626
Well guys, i have the OTA flocked, the focuser painted flat black thru and thru, the mirror clips relieved of some pressure, and a tube extension built. I...
... on ... outside ... than a ... better ... f/4.7 ... This is a good post, and right on the money. IMHO it was the Coulter Odyssey and Halley comet...
... Light hitting the back of our mirror is not going to affect your view: The aluminum on the face of the mirror will reflect it all out again through the...
For a very first scope, a GEM is pretty tricky to set up and get used to IMO. I think a Dob is a perfect 1st scope. Depending on where he's keeping it, he...
John, I have been on the lookout for a hand truck, and I haven't seen one yet for $20.00. Maybe I am missing something? ... Blessings, Carol "There is no pit...
... yet for ... I bought mine from our local Farm and Fleet. I don't remember the exact price, but I know it was <$30 anyway. Of course, this was 5+ years...
... the ... Wow, thanks Gene. But i was under the impression that some sort of flocking had to be done around the primary mirror? Does that mean just the...
... . ... John, The flocking I was recommending around the primary was for a band 20 or so inches wide - ABOVE the primary. If you look through the eyepiece,...
... 20 ... from ... Oh!!!!! Thank you so much!!! I am not comfortable with the primary air slots being stopped up for possible cooling complications. I have...
"I have been on the lookout for a hand truck, and I haven't seen one yet for $20.00. Maybe I am missing something?" Carol, I bought mine for $22.95 with...
I spoke with the folks at Starry Night and they said to use Pro or Pro Plus, not Enthusiast. There are issues with Vista but most (not all) have been resolved...
As you guys know i just followed the flocking instructions provided right here to the letter on my XT10 and last nite i got a chance to try the new and...
hi guys what is the largest size i can stop my XT10 down to as an unobstructed system, and what focal length would it end up being? Thanks in advance!...
John, I'm confused. The focal length is dictated by the curvature of the primary mirror. What do you mean by "stopping down"? Bob - N0DGN ... -- Bob - NØDGN ...
you could stop it down to 85-90 mm and the focal length would still be 1200mm. the f/ ratio would change to about f/14 or so. There is a chapter in Robert...
Yes - BUT - he stated an "an unobstructed system". The more he "cuts down" the light input path, the more the secondary becomes a LARGER obstruction to the...
... Hi. im sorry, by stopping down i meant blocking some of the incoming light with cardboard or something. And yes i did mean focal ratio, not length. I...
John, I'd NOT put the blocking piece into place UNTIL you have reached thermal equilibrium. Other than that, have a ball! Bob - N0DGN ... -- Bob - NØDGN ...
... better ... turbulent. ... of not ... stopping down ... of the 10" ... the ... diaphragm on ... Thanks Jack, i actually suspected that this may be the case....
If you come out to the mountains of New Mexico where the air is quite turbulent I think there may be evenings where you might like to use a Hershel mask, on...
From: "John Boyce" <jboyce@...> ... I've been coming to New Mexico on annual observing trips for over twenty years. Yes, the mountains do churn up the...
... I've done the same thing and gottern the same result: The increased aperture is more mportant than losing the diffraction caused by the secondary. Gene...
