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Old 18-10-2018, 11:45 PM
Saturnine (Jeff)
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Join Date: Jul 2008
Location: Wollongong
Posts: 2,134
The collimation could possibly be improved but the images suggest that it is good already. Have you performed a star test with it to see if the shadow of the secondary in a defocused star is concentric with the disc of the the defocused star, using a high power eyepiece giving about 300X magnification.
If it is concentric then I would leave well enough alone, for the time being. Use the scope for several months at least, in all seeing conditions , to get a better knowledge of how the scope performs , before fiddling with the collimation.
I used to have a 180 Skywatcher Mak and never needed to adjust it, worked fine straight out of the box, given an hour or so, time to cool to ambient temperatures.
Regret selling it now.
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