The diagonal is a 2 inch version which I borrowed from my 9.25 inch EdgeHD. The stock diagona that comes with the telescope is 1-1/4 inch. Also shown is a focal reducer. I've since installed an Antares 0.5x focal reducer which is installed by threading into the eyepiece holder, after the diagonal. As a result, the diagonal is closer to the OTA and can point to the zenith without hitting the base.

DSC_0457.JPG