For the eyepiece holder side of the diagonal, Celestron eschews convention and replaces the ubiquitous three thumbscrews to tighten the interior compression ring with a twist-lock. Utilizing a twist-lock not only makes swapping your eyepieces and accessories faster and easier, it properly centers the eyepiece and maintains proper optical alignment.
This version of the Dielectric Star Diagonal comes with two adapters for the telescope side: A 2" nosepiece that fits into standard drawtubes and a threaded ring that fits standard Schmidt-Cassegrain telescope (SCT) visual backs. Using the SCT adapter provides a solid and secure connection while limiting additional optical distance, which is important for imagers performing eyepiece projection techniques. The aluminum housing has a black anodized finish, and the interior is painted flat black with blackened threads to reduce reflections.
Features
Specifications
Kit Content
Celestron 90° Dielectric Star Diagonal 2”
Instruction Manual
2"-to-1.25" Reducer Adapter
2" Nosepiece
SCT Visual Back Adapter
Manufacturer Warranty