Skip to content



Precision-machined OTA mounting rings.

The Software Bisque 11-inch (27 cm) OTA mounting rings precisely fit the Celestron C11 and RASA 11-inch optical tube assemblies, and have threaded hole patterns to securely attach the OTA to the Paramount ME II, Paramount MX/MX+ or Paramount MYT Versa-Plate. The total weight of the ring set is 11 pounds (5 kg).

The optional Mounting Ring Dovetail Accessory Plate can be affixed to the mounting rings to carry additional equipment (guiders, finders, etc.)

Additional information

Additional information

Weight 15 lbs
Dimensions 12 × 12 × 6 in


Technical Drawings