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Thanks Lee and John for the tips. I realise this is a difficult area and there are many factors potentially at play.
To answer your question John I have been doing 5 min subs and generally getting round stars. I have probably done 5 nights of imaging with this setup and in that time I have probably kept 90% of the subs I have taken with the remainder smeared to varying degrees. The images I have produced have been pretty reasonable for a beginner I think and have been reasonably sharp.
However like you said I think there is a fair bit of room for improvement to get smoother guiding and more consistent results leading to the ability to do longer subs where appropriate. I will put your suggestions into place.
If there are others out there that have experience with PHD/2 and are using guide scopes I would welcome hearing about your experiences and what you found improved your guiding.
thanks
Brett
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