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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Baader UFC Telescope Side Adapter - S70/RASA 11"
Baader UFC Telescope Side Adapter - S70/RASA 11"
Baader UFC Telescope Side Adapter - S70/RASA 11"
Baader UFC Telescope Side Adapter - S70/RASA 11"

Baader UFC Telescope Side Adapter - S70/RASA 11"

by Baader Planetarium
SKU BAA-2459126
$192.00 - $192.00
$192.00
$192.00 - $192.00
$192.00
Price Match Policy!
  • Connects Baader UFC System to Celestron RASA 11" Astrographs
  • Provides a Telescope-Side S70 Dovetail Interface
  • Ensures a Rigid, Non-Flexing Connection for Your Imaging Train
  • Precision-Fit for the RASA 11" Optical Tube
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader UFC Telescope Side Adapter - S70/RASA 11"

    The Baader UFC Telescope Side Adapter for the RASA 11" is the essential mechanical link for attaching the Baader Universal Filter Changer (UFC) system to your Celestron RASA 11" astrograph. This adapter creates a secure, model-specific mounting point on the telescope itself, presenting a female S70 dovetail receptor for the main UFC filter base and the rest of your imaging train.

    Secure Telescope Integration for the RASA 11"

    This adapter is engineered specifically for the Celestron RASA 11", ensuring a perfect fit that eliminates the potential for tilt or flexure at the telescope connection. By creating a solid foundation, it maintains the precise optical alignment critical for the RASA's fast optical system. This is not a generic adapter; it is the purpose-built starting point for building a rigid and reliable UFC-based imaging train on your RASA 11".

    The S70 Dovetail: A Rigid Foundation for the UFC System

    On the camera side, this adapter features Baader's robust S70 dovetail system. This large-format dovetail provides a secure and repeatable connection for the Baader UFC Base, which holds the filter sliders. The S70 interface is the standard for the entire UFC ecosystem, allowing you to confidently attach the filter changer and subsequent components, knowing the connection is solid and square to the optical axis.

  • What is the purpose of the Baader UFC S70/RASA 11" adapter?

    This adapter serves one primary function: to securely connect the Baader Universal Filter Changer (UFC) system to a Celestron RASA 11" telescope. It bolts to the telescope and provides the necessary S70 dovetail interface for the rest of the UFC components.

    I have a Celestron 11" EdgeHD SCT. Can I use this Baader UFC S70/RASA 11" adapter?

    No. This adapter is designed exclusively for the mounting pattern and backfocus requirements of the Celestron RASA 11". You will need a different telescope-side UFC adapter designed for the standard SCT thread of an EdgeHD telescope.

    How does the UFC S70/RASA 11" adapter connect to the filter changer itself?

    The adapter features a female S70 dovetail. The main Baader UFC Base (the part that holds the filter sliders, sold separately) has a corresponding male S70 dovetail, allowing it to slide in and lock securely to this adapter.

    Is this the only part I need to use UFC filters with my RASA 11"?

    No, this is just one component of the modular UFC system. At a minimum, you will also need:

    • The main Baader UFC Base
    • A filter slider for your chosen filter size
    • A camera-side adapter to connect your specific camera to the UFC Base

    Does the Baader UFC S70/RASA 11" adapter affect backfocus?

    Yes, every component in the optical path affects backfocus. This adapter is designed to place the UFC system at the correct distance from the RASA 11" optics. You must account for its optical length, along with all other UFC parts and camera adapters, to ensure you meet the RASA's required backfocus distance.

    Why use the Baader UFC system on a fast astrograph like the RASA 11"?

    The RASA 11" is an incredibly fast imaging system, making it highly effective with narrowband or LRGB filters. The Baader UFC system provides a robust and flexible way to change filters without introducing the flexure or tilt that a traditional filter wheel might cause in such a sensitive optical train. Its thin profile also helps preserve precious backfocus.

  • Net weight (kg) 0.13
    Inner Diameter / Clear Aperture (mm) 65 mm
    Type of Adapter Expanding Adapter
    Optical length (mm) 3
    Outer Connection (eyepiece/-camera-sided) S70
  • Baader Planetarium Warranty Policy