Just set up my new ASI2600mm Pro kit which includes the M68 OAG and 7 position 36mm filter wheel. My telescope is the Williams Optics GT81. My previous setup was a DSLR, ASIAir Pro, GT81, ZWO 120mm mini guide camera mounted to the 30mm mini scope. Everything has gone OK on the new setup with the exception of the OAG. When I loop 1-2 second exposures through the OAG/Guide camera I get no stars. The main camera focuses perfectly. The OAG has an integrated focuser and I have slid the guide camera in and out of the tube in an attempt to see/focus stars. No luck.
I don’t believe it’s possible to mount the OAG backwards but I looked down the OAG tube with the camera removed during the day and I could see that I was looking out the GT81.
I guess I can go back to the mini scope but I bought the OAG and would like to make it work.
I’m out of ideas. Any help greatly appreciated.