Celestron Dielectric Star Diagonal 2" Twist-Lock (93573)

Diagonal

Awesome unit. Very solidly constructed Good fitment to the c11 Use with the baader click lock for secure fitment

Its a great diagonal. well designed and versatile.

This is mounted on a C8. It's very heavy so balance could be an issue on smaller scopes. Machining is good with tight tolerances. The 2" to 1.25" twist lock adapter works well and holds eyepieces inverted securely. To the eye, the image is very bright with no visible imperfections.