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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.
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.
Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes
Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes
Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes
Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes
Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes

Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes

by Starlight Instruments
SKU SI-A30-1903-85
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
Price Match Policy!
  • Connects Starlight Instruments 3.0" focusers to select Takahashi telescopes
  • Compatible with Takahashi FSQ85 refractors
  • Compatible with Takahashi FC100 refractors
  • Enables secure, heavy-payload astrophotography
  • Precision-machined for a direct, no-flexure fit
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  • Description
  • FAQ
  • Warranty

  • Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes

    The Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes provides the essential mechanical interface to upgrade your refractor with a large-aperture Feather Touch focuser. This component is specifically machined to match the tube threads of the Takahashi FSQ85 and FC100, ensuring a direct, secure fit for a 3.0" Feather Touch focuser body.

    A 3.0" Upgrade Path for Takahashi FSQ85 & FC100 Refractors

    While Takahashi's stock focusers are excellent, astrophotography with heavy cameras, filter wheels, and off-axis guiders demands absolute rigidity. This adapter is the key to unlocking the next level of focusing precision by allowing the installation of a Starlight Instruments 3.0" Feather Touch focuser onto your FSQ85 or FC100 optical tube.

    • Seamless Integration: This adapter creates a solid, threaded connection between the telescope tube and the focuser, functioning as a single, rigid unit.
    • Access to Feather Touch Precision: Enables the use of Starlight's renowned dual-speed 10:1 fine focus mechanism, critical for achieving sharp focus with modern, small-pixel sensors.
    • Increased Load Capacity: A 3.0" Feather Touch focuser supported by this adapter can handle significant imaging payloads without sag or image shift.

    Rock-Solid Connection for Heavy Imaging Payloads

    Engineered and manufactured in-house by Starlight Instruments, this adapter eliminates the potential for flexure that can compromise long-exposure images. The robust, precision-machined component ensures that your entire imaging train—from the optical tube to the camera sensor—is perfectly aligned and stable throughout the night.

    By replacing the standard focuser attachment with this dedicated 3.0" adapter, you create a zero-flexure foundation for your imaging system. This is crucial for automated focusing routines and for maintaining pinpoint stars from corner to corner, especially with the demanding flat fields of the FSQ85 and FC100 optics.

  • What is the purpose of the Starlight Instruments 3.0" Adapter for Takahashi telescopes?

    This adapter serves as the mechanical link required to mount a Starlight Instruments 3.0" Feather Touch focuser onto the optical tube of a Takahashi FSQ85 or FC100 telescope. It ensures a secure, threaded, and perfectly aligned connection.

    I have a Takahashi FSQ85 and want to use a heavy camera. Is this adapter what I need?

    Yes, this adapter is the first component you need for a focuser upgrade. Paired with a 3.0" Feather Touch focuser (sold separately), it creates an extremely rigid focusing system capable of handling heavy imaging loads without flexure, which is essential for serious astrophotography with the FSQ85.

    Will this adapter fit my Takahashi FC100 and a 3.0" Feather Touch focuser?

    Absolutely. This adapter is designed specifically for the tube threads of both the Takahashi FC100 and FSQ85 models, allowing for a direct and secure installation of any Starlight Instruments 3.0" focuser body.

    Why should I replace the stock focuser on my FSQ85 or FC100?

    While the stock Takahashi focuser is very good for visual use, a Starlight Instruments Feather Touch offers a higher load capacity and a more precise 10:1 fine-focus ratio. For astrophotographers using heavy cameras and automated focusing systems, the upgrade provides a more rigid, zero-shift platform for critical imaging.

    Is installing the Starlight Instruments 3.0" adapter a difficult process?

    Installation is typically straightforward. It involves unthreading the stock focuser assembly from the rear of the telescope tube and threading this adapter in its place. Once the adapter is secure, the 3.0" Feather Touch focuser can be installed onto it. Always handle optical components with care during the process.

    Can I use this adapter with a 2.5" or 3.5" Starlight Instruments focuser?

    No, this adapter is specifically machined to fit the mounting pattern and dimensions of a Starlight Instruments 3.0" focuser. You would need a different adapter for other focuser sizes.

  • Starlight Instruments 2-Year Warranty