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Polar alighnment for very long exposures
Lee, very interesting thread.
A few months ago I also searched for 'perfect' polar alignment with my equipment which compared with others on this site you could only describe as basic (EQ5 pier mounted)
The best I could achieve was 2 min exposures unassisted, but one thing I did experiment with to achieve the best result I could, was to put a 0-100 ohm potentiometer inline from regulated voltage suppy to motor control.
yup..not conventional but it helped. Went from 30 sec to 2 minutes.
John
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