|
I used to have the same problem on my Newton with my DSLR incl. a battery grip and a Powermate inbetween the camera and the focuser.
I solved it by turning the telescope tube around so that the camera is pointing down. Moving the camera and associated bits down and close to the mount improved everything balance related dramatically. I go 12.5min exposures with subarcsecond guiding and round stars without hearing the mount working. Hope this helps.
|