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[QUOTE=RobF;1202108]Its a shame there aren't better adapter solutions available to help with shimming/adjusting squareness.
Do the more expensive cameras come with this sort of capability?
Spacenoob, where were you putting the aluminium slivers exactly?
I can get by at F/5 on the FSQ, but suspect the QHY9 isn't square enough at F/3.7, even with all screw-in attachments to the scope.
I can almost guarantee you your camera will show tilt at F3.7. It can be a very small tilt and it will cause elongated stars in the corners or odd shaped stars and just a general look of lack of sharpness in one corner. I can find bright stars in the corners will look fine but the dim ones show up the error quite clearly.
My only comment about tilt/tip adapters is that they would need to be easy to adjust rather than remove them, adjust a couple of screws retighten and then retest. That would be tedious.
So something that can adjusted without removing things would be ideal.
Also I am not sure how those 3 point adjusters work. It seems to me that they need to be 4 points not 3 as how do you adjust for the top right corner of the side with only one adjuster? Perhaps you can but it seems like it lacks fine control.
Greg.
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