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Old 23-03-2010, 10:26 PM
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Miaplacidus (Brian)
He used to cut the grass.

Miaplacidus is offline
 
Join Date: Jul 2005
Location: Hobart
Posts: 1,235
Quote:
Originally Posted by magado View Post
I have a 8inch dob.It has been good to usebut of late there is no way I can
focus it It has been collimated it has a Crayford focuser. hoping for some
help.It looks like it wont be long until it goes to the tip
Magado
I'm sorry to hear you're having difficulties with focusing. Hard to determine over the internet what might be wrong. Is there a club nearby that maybe you could take it to?

Otherwise, perhaps you could provide more details. What eyepieces are you using? How is the image distorted? (Perhaps using it during the day on some distant object on the horizon might provide some clues.)

Quote:
Originally Posted by AG Hybrid View Post
A very good essay. Ive been looking for a comprehensive guide like this to the basic pro's and cons of each telescope design in one article, comparing them to each other.

Nice one

Ta, Adrian.
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