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SCT collimation (indoor vs outdoor)
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27-03-2020, 07:11 PM
StuTodd
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Join Date: Dec 2014
Location: Dunedin, New Zealand
Posts: 353
The reason you get "good" collimation indoors and it changes when outside is because the scope isn't thermally stabilized.
This is possibly the most important step so always collimate outside after the scope has been sat for an hour or so.
StuTodd
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