[QUOTE=multiweb;734060]Thanks Greg.
Binning's not really an option for me as my image scale is already borderline. I'll have to try stopping it. I found it odd that only bright stars showed it. But then again I have only started using lenses for widefield and still have a lot to learn and work around things.
I don't know why either binning would work only that it does. It seems to average out the errors a bit.
Greg.