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Starlight Instruments 3.0" Adapter TFPE Coupled Collar
Starlight Instruments 3.0" Adapter TFPE Coupled Collar

Starlight Instruments 3.0" Adapter TFPE Coupled Collar

by Starlight Instruments
SKU SI-A30-1903-1
CA$224.00 - CA$224.00
CA$224.00
CA$224.00 - CA$224.00
CA$224.00
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  • Connects 3.0" FTF30xx Series Feather Touch Focusers
  • Telescope-Side Thread: 109x1mm Male
  • Coupled Collar Design for Focuser Rotation
  • Precision-Machined for a Rigid, No-Flex Connection
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Starlight Instruments 3.0" Adapter TFPE Coupled Collar

    The Starlight Instruments 3.0" Adapter TFPE Coupled Collar provides a secure, threaded connection between any FTF30xx series 3.0" Feather Touch focuser and a telescope backplate requiring a 109x1mm male thread. This component is essential for creating a rigid, stable imaging train, eliminating the flexure and tilt that can compromise long-exposure astrophotography.

    A Precision 109x1mm Interface for 3.0" Feather Touch Focusers

    This adapter is engineered to mount a Starlight Instruments FTF30xx 3.0" Feather Touch focuser directly to a telescope's optical tube assembly. It features a 109x1mm male thread, ensuring a zero-flexure connection that is critical for astrophotography with heavy cameras and filter wheels.

    • Direct Telescope Integration: Replaces a stock focuser or visual back on telescopes equipped with a female 109x1mm threaded port, enabling a significant upgrade to a 3.0" Feather Touch system.
    • Heavy Payload Support: Creates a solid, all-threaded connection from the telescope to the focuser, eliminating the potential for sag or tilt common with slip-fit or compression ring adapters.
    • Full Rotational Freedom: The coupled collar design works seamlessly with the FTF30xx focuser's rotational mechanism, allowing you to orient your entire imaging train 360° for perfect framing without losing focus.

  • What is the purpose of the Starlight Instruments 3.0" Adapter TFPE Coupled Collar?

    This adapter allows you to attach a Starlight Instruments 3.0" Feather Touch focuser (from the FTF30xx series) to a telescope that has a female 109x1mm threaded connection on its rear cell or optical tube. It creates a secure, rigid mounting point for a high-end focuser upgrade.

    Which focusers are compatible with the 3.0" Adapter TFPE?

    This adapter is designed specifically for the Starlight Instruments FTF30xx series of 3.0" Feather Touch focusers. It will not work with 2.0", 2.5", or 3.5" models.

    I have a Takahashi telescope with a 109x1mm thread. Will this adapter let me install a Feather Touch focuser?

    Yes, this adapter's 109x1mm male thread is designed for precisely this application. It allows you to upgrade a Takahashi or other compatible telescope to a robust 3.0" Starlight Instruments focuser for improved focusing and load-bearing capacity.

    What does "Coupled Collar" mean for this Starlight Instruments adapter?

    The "Coupled Collar" design means the adapter is made to work with the 3.0" Feather Touch focuser's built-in rotation mechanism. After installation, you can loosen the focuser's locking collar, rotate your camera to the desired angle, and re-tighten it without affecting focus or collimation.

    Will using the 3.0" Adapter TFPE prevent flexure when imaging with a heavy camera on my refractor?

    Absolutely. By creating a direct, threaded connection between the telescope tube and the 3.0" Feather Touch focuser, this adapter provides a much more rigid and stable platform than standard compression or slip-fit adapters. This is essential for preventing tilt with heavy imaging payloads.

    How do I install the Starlight Instruments 3.0" Adapter TFPE?

    Installation involves unthreading your telescope's stock focuser or visual back, then carefully threading the 109x1mm male end of this adapter onto the telescope's rear cell until it is firmly seated. The FTF30xx focuser then attaches to the adapter and is secured by its own locking collar.

  • Focuser Compatibility Starlight Instruments 3.0" FTF30xx Series
    Telescope-Side Thread 109x1mm Male
    Adapter Type Coupled Collar for Focuser Rotation

    • 3.0" Adapter TFPE Coupled Collar

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  • Starlight Instruments 2-Year Warranty