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Baader UFC Telescope Adapter with S70 Dovetail Ring for C11 & C9.25 Hyperstar - UFC-C11HD

SKU: BAD-UFC-C11HD

Baader UFC Adapter w/S70 Dovetail Ring for C11 & C9.25 Hyperstar

  • Baader S70 UFC Adapter for C11 or C9.25 Schmidt-Cassegrain or EdgeHD Hyperstar.
  • Adapter for Celestron C11/C9.25 SC and EdgeHD Hyperstar on the telescope side.
  • S70 dovetail ring on the camera side.
  • Suitable for adapting to the UFC Filter Base as well as UFC extensions via the S70 dovetail.
  • Please see description below regarding Hyperstar adaptation.


Important Note on Hyperstar Adaptation

The distances for camera to Hyperstar system adaptation must be made with a precision of at least +/- 0.3 mm in order to prevent image quality deterioration.

For example, the Celestron C11 has a 59.7 mm backfocus. In addition, the focus shifts 0.66 mm in the extrafocal direction if you use filters with a 2 mm thickness (since these are typically used for 2"/M48 housings). As a rule of thumb, a filter moves the focus in the extrafocal direction for a third of the filter's thickness. Subtract the flange focal distance of the camera from this value. The leftover distance is adjusted by the UCF and its adapters. Please contact us if you need help.

Baader S70 UFC Adapter for C11/C9.25 Hyperstar Specifications

  • Optical Tube Length: 4.1 mm
  • Inner Diameter/Clear Aperture: 64.3 mm
  • Outer Diameter: 75 mm
  • Outer Connection (Eyepiece/Camera Side): S70 dovetail ring