Quote:
Originally Posted by richardda1st
Yes well I'm definately going for the 2", thanks Jason & qld. The larger target area shown in those pics will be worth the extra few dollars.
I have just been offered a test run using the 2" catseye, so I'll wait till then.
Richard
ps. I hope I'm not the only one who finds all the different combinations and naming style on the catseye page very confusing.  |
You need the sight tube (TELECAT XL) to center your secondary under the focuser.
Then the cheshire (BLACKCAT XL) to align the primary.
Then the auto-colimator (INFINITY XL/K) to tweak the secondary orientation and tilt.
Of course it is an iterative process. Read
thorougly the link to the PDF Jason posted and have a look at Vic Menard's primary offset technique. It's important to understand why it works.