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Tilt with rotation, but not sag?

Equipment Rotator Tilt
4 replies•94 views
Daniel DeSclafani avatar
Daniel DeSclafani avatar
SO I have what I believe to be tilt when I rotate the camera. I say this because I adjusted for tilt, and as soon as I rotated to frame my target I got tilt again. However, no matter what target I go to the tilt does not change. SO pointing anywhere in the sky does not changfe the direction of tilt, but a rotation of my camera does. Could this be focuser misalignment?

Equipmetn: WO GT81 w flat 6aIII

I use the new William optics rotator that is integrated into the drawtube. 

Thanks in advance.
andrea tasselli avatar
andrea tasselli avatar
The focuser is not coaxial with the optical axis, IMO. Happens all the time.
Lynn K avatar
Lynn K avatar
I agree with Andrea. If there was tilt in the camera chip, the tilt Would always be the same. Because it changes with rotational orintation to the focused, the tilt is somewhere between the rear of the focuser an tube.
Lynn K.
Daniel DeSclafani avatar
Daniel DeSclafani avatar
Yep you are absolutely right. The William optics rotator is sagging on me actually. So my initial thought was actually incorrect. If you have this scope definitely go and check that you dont have tilt in this location. I am not sure if this is normal for the 2600 or if I just got a faulty rotator. I emailed WO so I want to see if they have any idea, maybe I can tighten it somehow.
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