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Thanks Graham, I grabbed a copy of the PDF for collimating the R200SS and will have a careful read. The GSO scope does not come with any manual!
Thanks Glen for the advice on those screws. Should I loose the lock knows completely before I twiddle with the collimation knobs, or just ease them back a little?
I've armed myself with Astrobaby's excellent explanation, and a few others. A bit of reading to do!
Do folks think a cheap laser + cheshire is sufficient for tuning collimation at f/4, or do I need to invest more heavily in this kit?
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