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Old 01-06-2009, 01:12 AM
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Chillie (Henry)
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Join Date: Mar 2009
Location: Horsham, Victoria
Posts: 443
Quote:
Originally Posted by RAJAH235 View Post
Hi Henry,
Just a little more on 2ndary "Off Set".
> http://www.skyandtelescope.com/howto/diy/3306996.html
& Collimation in general,
> http://web.telia.com/~u41105032/kolli/kolli.html
L..
Thanks for the links. The first one is relatively easy to understand. The second will take a bit of time to work through. I'm still playing "catch up" with my forums.

Quote:
Originally Posted by Blue Skies View Post
I think what Marc calls a drawtube I call a sighttube, and if this is the case then its a long tube with a cross-wires at the end which you use to get the secondary in the right place before you use the cheshire.

I know its going to do your head in for a while but persevere, it will make sense eventually and seem straightforward and simple. And if you're going to continue with just a laser you will need to get to grips with the offest issue for best results.
Thank you for that. Having several different hobbies doesn't help but I'll get there in the end.
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