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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 William Optics FLT98, Carbon Fiber Telescopes
Starlight Instruments 3.0" Adapter for William Optics FLT98, Carbon Fiber Telescopes
Starlight Instruments 3.0" Adapter for William Optics FLT98, Carbon Fiber Telescopes

Starlight Instruments 3.0" Adapter for William Optics FLT98, Carbon Fiber Telescopes

by Starlight Instruments
SKU SI-A30-1903-22
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
Price Match Policy!
  • Connects 3.0" Feather Touch focusers to the William Optics FLT98
  • Designed specifically for the Carbon Fiber tube version with the Red Tube Adapter Ring (T.A.R.)
  • Machined from high-grade aluminum for maximum rigidity
  • Prevents flexure and tilt with heavy imaging cameras
  • Finished with Starlight Instruments' signature black anodizing
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  • Description
  • FAQ
  • Warranty

  • Starlight Instruments 3.0" Adapter for William Optics FLT98, Carbon Fiber Telescopes

    This Starlight Instruments adapter creates a mechanically perfect, zero-flexure connection between your William Optics FLT98 Carbon Fiber telescope and a 3.0" Feather Touch focuser. It is specifically machined for the FLT98 model that uses the distinctive Red Tube Adapter Ring (T.A.R.), ensuring a direct, secure fit for serious imaging setups.

    A Rock-Solid 3.0" Focuser Connection for Your William Optics FLT98

    Upgrading to a 3.0" Feather Touch focuser is a significant step for any imager, but the connection to the telescope must be equally robust. This adapter replaces the stock components to create a solid, threaded interface that eliminates the potential for tilt or flexure that can ruin long exposures. Machined in-house by Starlight Instruments from the highest quality aluminum, it guarantees that your focuser, camera, and optical tube behave as a single, rigid unit.

    This component is not a universal adapter; its precision is its primary advantage. It is engineered exclusively for the William Optics FLT98 with a carbon fiber tube and the red tube adapter ring, ensuring perfect alignment and a seamless integration with your telescope's optical and mechanical systems.

  • How do I confirm this 3.0" adapter is right for my William Optics FLT98?

    This adapter is highly specific. You must have the William Optics FLT98 with the Carbon Fiber tube AND the Red Tube Adapter Ring (T.A.R.). It will not fit the aluminum tube versions or models without this specific ring.

    Which Starlight Instruments focusers will this adapter connect to my FLT98?

    This adapter is designed to connect any Starlight Instruments 3.0" Feather Touch focuser, such as the FTF3015B-A or FTF3025B-A, to your William Optics FLT98 Carbon Fiber telescope.

    What is the benefit of using this Starlight Instruments adapter over a generic one?

    A generic adapter can introduce flexure or misalignment into the imaging train. This scope-specific adapter provides a perfectly machined, rigid connection that maintains the collimation and mechanical integrity of your setup, which is critical for achieving sharp stars with heavy cameras and filter wheels.

    Is the installation of this FLT98 adapter difficult?

    Installation is generally straightforward. It typically involves unthreading the stock focuser and its original adapter from the telescope's red adapter ring and then threading this Starlight Instruments adapter in its place. No specialized tools are usually required.

    Why do I need a 3.0" focuser on my William Optics FLT98 for astrophotography?

    A 3.0" focuser provides a larger, more rigid drawtube capable of supporting heavy imaging trains—including large-format cameras, filter wheels, and off-axis guiders—without sagging or flexing. This adapter is the essential first step to enable that upgrade, ensuring your entire imaging system remains perfectly aligned for sharp, round stars across the field.

    I want to use a full-frame camera and filter wheel on my FLT98. Is this 3.0" adapter part of a stable solution?

    Yes, absolutely. This adapter is the critical foundation for such a setup. It creates the rigid mechanical link between your telescope tube and a 3.0" Feather Touch focuser, which is specifically designed to handle the weight and moment arm of a heavy imaging train without introducing tilt or flex.

  • Starlight Instruments 2-Year Warranty