Re: [ATM] which Collimination tools?

[Ken Hunter <atm_ken_hunter@yahoo.com>]

--- John Moore <jamoore42@yahoo.com> wrote:
> 1.sight tube, chesser,,laser-tube.
> 2.sight tube,chesser,autocolliminator.
> 3.sight tube,chesser.
>  
> Which ones do I realy Need??
>  
> Help!!!!
>  
> John Moore.
> 

You don't NEED any of them...

You can collimate the scope using nothing more than
you eye and the view through the instrument. In the
case of your Dob mounted scope, you would move the
mirrors for a symetrical view (all mirrors seen
concentric within the tube) from the front of the
scope then from the focuser. Fine tuning would be done
examining the "coma flair" on stars to move the "sweet
spot" to the center of the field of view.

Ken Hunter



__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
_______________________________________________
ATM mailing list http://www.atmlist.net/