CAA Rotator and ZWO OAG

lausso

I recently ordered a CAA, which should arrive end of the month, and I would like to have the following image train on my 9.25HD:

Camera -> Filter wheel -> CAA -> OAG-L -> Telescope

However, I am not sure how to connect the CAA to the OAG.

The CAA has a M54 female thread at the telescope side and the the OAG also has a M54 female thread on the camera side. However, it's not possible to use a M54 male/male thread to connect them as the "belly" of the rotator blocks screwing rotation to each other. Not sure if I explain myself well enough, but I hope you get the idea.

Tech@ZWO

lausso If you do not have a back focus length requirement, you can connect the CAA after the OAG-L and add a M54 male-M54 female adapter between them to solve this problem.

lausso

Tech@ZWO Yes, that's an option too, but it would require re-calibrating after each rotation...

crackout

Tech@ZWO

Are there images of a mounted CAA-OAG-L-EFW combo?
It seems to me that the protrusion of the helical focuser collides with the CAA.

Tech@ZWO

lausso Are you referring to guide calibration data? if so you can check the rotate guide calibration data with CAA option in the settings.

Tech@ZWO

crackout Yes, need to add a adapter betwen the oag and CAA.

crackout

Then that makes it unusable for me, I only have 16mm left without the CAA.
OAG-L, EFW and camera already take 55mm.