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Alex it is slowly getting better. Have found a flex problem in the back end and tightened up the focuser rail. Visually I can get it very close but as soon as the cooled camera goes on it sags out of collimation. When I put the uncooled DSLR on it was better but stll showed some sag. As soon as I get some clear nights I will run some more tests with the stock DSLR and tightened focuser. Next step would be to move my Moonlight focuser from my iStar refractor to the RC to test that but I will need to get an adaptor for the RC flange and the Moonlight. Baby steps.
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