Excellent question - I am wondering the same thing. How do you tell when
things are optimized? And does the 2-3mm sideways slop make 'that' much of
a difference, or should we be more worried about the rotation issue (or
both?).

Have CCD camera, will test (if someone has ideas about what might work).

Anthony J. Kroes
Green Bay, WI

> -----Original Message-----
> Maarten Vanleenhove
> Sent: Wednesday, May 02, 2001 9:14 AM
> Subject: [M]: Secundary Spining
>
>
>
> I had the same problem and tightened it up by applying small
> pieces of tape
> on the cork until the secundary would fit in very tight. My collimation
> used to be off very fast but with tightening things up this has improved
> dramatically. Anyone any idea why there is so much space between the
> secundary housing and the corrector ?
> So far I haven't even bothered to try to align the secundary. How can you
> see if an image is optimised ? Perhaps someone with CCD-images of sec
> aligning could help out here ?
>
> Maarten Vanleenhove
> www.maarten.vanleenhove.yucom.be
>
>

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