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Polar aligment with 400 mm

Posted: Wed Jul 11, 2018 8:02 pm
by hugo52
hello, pls do you know if a starshoot and 400 mm orion guider will/can work?
Regards Hugo

Re: Polar aligment with 400 mm

Posted: Wed Jul 11, 2018 9:11 pm
by admin
Some people have got this combination to work, but using a 0.5x focal reducer to bring the effective focal length down to 200mm

See various previous posts - https://www.google.co.uk/search?q=400mm ... pcap.co.uk

Robin