I'm making a wood base for my 12" Meade Lightbridge. I would like to be able to level the base for tracking purposes. I not sure what to use for adjustable...
In a message dated 12/29/2008 1:48:05 PM Pacific Standard Time, ... Mr. Bahmer - visit the McMaster-Carr website (www.mcmaster.com). Very large, well-stocked...
I'm not familiar with that camera. Is it an SLR? Is the Lens removed? Eyepiece removed? If so, are you sure you have enough focuser travel to get the film...
Just to add a little to the previous reply. As a greenhorn, it's worth checking the terminology: Prime focus means imaging at the primary objective focal...
This is common with Newtonians and SLR's because SLR's have their focal plane so far back into the camera. This can be solved in several ways. 1. Use a Barlow...
That would be a trade off decision. If the current secondary is adequate, it's likely not "just" adequate. An inch or two of mirror movement wouldn't demand...
According to Newt 2.5 (which can be found in the Files Section of this group's home page), my secondary size is precisely perfect for my current OTA geometry....
There is also the option of using a Bahtinov Mask to achieve a good focus. You can generate your own mask using the online util via the link below: ...
Hello, If you want one of these mask, this is who to buy from. I have purchased 2 from them and they work great and are a third cost of the other folks. ...
... WG: Not if the scope was designed properly in the first place. ... WG: It /should/ be if the scope was designed properly in the first place. ... WG: Not...
I'm not in disagreement with you, I guess we're just looking at the decision from different points of view. Here's my concern. There aren't an infinite number...
Newt 2.5 is that program. Find it in the Files Section of this group's home page. "My advice is always free and worth every penny!" -Christopher Erickson ...
Newt is the easiest to use program around for determining secondary size. Most production newts ship with a somewhat oversized secondary and it's often...
... WG: Not at all. Why so? First of all, there does not need to be an infinite number of sizes. If the user, finding that the PF does not come out to his...
Hyper-critical is subject oriented. While you may say I'm using a hyper-critical expectation of resolution, I would suggest you may be being hyper-critical...
... WG: Larry, perhaps you missed the meaning of what I said earlier. I was not referring to "you" in the first-person, but to _anyone_ in the third person...
Hi. A person in the neighbourhood contacted me and asked if I could help set up their telescope. I discovered they have a Swift 114900 reflector on an...
I am not acquainted with that particular brand of scope. But definitely the eye piece should not move from its position when clamped down. There must be ...
I don't have any experience with that particular scope either, but on some cheap Meade DS series scopes, the eyepieces also fit very loosely and tilt when they...
I think this link is still dead. Can the doc be posted under files? ... like ... (or ... report ... encounter ... system to ... received anything from them...
Has anyone tried to mount this hand held Sky Mount on a telescope and if so how did it work for you. Seems like this would be a cheap go to if it can be...
Some have done it with some success. It doesn't like being around magnets or ferrous metal. And the pointing accuracy isn't very good for anything but the...
Hello, I am undecided on whether to direct my cooling fans upwards or downwards through the OTA. Right now I am leaning downwards because: a) the air coming...
In a message dated 3/11/2009 9:42:13 PM Pacific Daylight Time, ... John - points a and b above are usually quite true and are an excellent argument for...
Mick, Thank you for your reply and excellent suggestions! Would you have pictures of your set up for us to see? Best regards, John ... From: mhholl@......
In a message dated 3/11/2009 10:57:29 PM Pacific Daylight Time, ... John - don't instantly have photos of the two fans but it's a good thought. I'll try to...
... John/Group - responding to the above question, I have posted to the Photos section, Mick Hollimon album, photos of the cooling fans and the 10 inch scope...
