If I remove the tilt plate, how do I attach it on the telescope side? The ZWO website says that "OAG-L removed the inner threads so you can directly use the screws to connect it to other equipment." I'd like to use a threaded connection for an M68 extension tube.
Is the OAG-L body threaded?
astrovienna OAG-L came with an M48 tilt plate that has the threads, so if you want to connect via threads, please attach the tilt plate.
You can purchase an M68 tilt plate here.
https://astronomy-imaging-camera.com/product/m68-sensor-tilt-plate