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freelander86

Seben Collimator on my 130

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Hi,

Ive treaded myself to a collimator over Christmas as I was getting some poor views when I last used my scope...

I am just wondering if anyone has any tips or advice before I start?! I read somewhere that it would help if I had a centre mark on my main mirror but i don't know how to find the exact centre?!

Any comments welcome here....

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