Collimatiing Dobson

[Dum777]

Hi Guys
Just wondering if anyone could give me a hand collimating a8inch dobson?
Im at Coomera Gold Coast and will comet o you ;tried every thing but its still out ill pay if needs be
Thanks Ian

[AEAJR]

What sort of problems are you having?

What tool are you using to collimate?

What makes you think the collimation is bad?


From what I understand most of the dobs are done the same way so this may be helpful.

How to Collimate an Orion Dob using a Collimation cap or laser
https://www.youtube.com/watch?v=YAVGcGEBmCE


I use a collimation cap. I had purchased a laser but did not liked how it worked so I sent it back.

[Orionskies]

Thanks for this Ian as a new Dob owner I'm yet to give it ago, and thanks AEAJR for the video link. :)

[AEAJR]

Remember that the system was probably collimated at the factory. When you check it you should not be surprised if it appears to be right on the money.

[Dum777]

Hi Ed
screw was loise on secondary mirror and i think its moved
Planets all blury when ocusing in and out and can see spider vains
Cheshire put carnt seem to get it righr

[AEAJR]

Can't help you with that. Have never had to do anything significant. I follow that video. That is about the limit of my experience.

[bigjoe]

Some good tips in SGL HERE buddy.
https://stargazerslounge.com/topic/197640-collimation-and-star-hopping/
Cheers bigjoe.

[jenchris]

I'm in Ormeau.
Shout if you can't work out the video.