My ASI2600MC Pro is still on back-order. The ZWO website says the opening of the ASI2600 is 42mm. I just measured the thread on my FR/FF and its 48mm Male. How can I connect the ASI2600MC Pro to the FR/FF and maintain the correct back-focus?
https://astronomy-imaging-camera.com/tutorials/best-back-focus-length-solutions-55mm.html
You could refer to this link for the connection.
