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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.
Starlight Instruments 3.0" Adapter TFPE Coupled Collar for AP Threaded OTA
Starlight Instruments 3.0" Adapter TFPE Coupled Collar for AP Threaded OTA

Starlight Instruments 3.0" Adapter TFPE Coupled Collar for AP Threaded OTA

by Starlight Instruments
SKU SI-A30-1903-27
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
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  • Connects 3.0" Feather Touch focusers to compatible Astro-Physics OTAs
  • Utilizes the OTA's rear cell threads for a direct, secure fit
  • Coupled collar design allows for 360° focuser rotation
  • Precision-machined for a rigid, zero-flexure connection
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  • Description
  • FAQ
  • Downloads
  • Warranty

  • Starlight Instruments 3.0" Adapter TFPE Coupled Collar for AP Threaded OTA

    The Starlight Instruments 3.0" Adapter TFPE provides the specific threaded connection required to mount a 3.0" Feather Touch focuser onto a compatible Astro-Physics optical tube assembly. This adapter ensures a solid, perfectly aligned fit, replacing guesswork with a purpose-built component for serious imaging.

    Secure Mounting for 3.0" Feather Touch Focusers on Astro-Physics OTAs

    This adapter threads directly onto the rear cell of compatible Astro-Physics telescopes, creating a rigid connection point for your 3.0" Feather Touch focuser. The "Coupled Collar" design is a key feature, allowing you to loosen the collar, rotate the entire focuser assembly to perfectly frame your target, and then lock it down without introducing any tilt or flexure. This is essential for astrophotography, where camera orientation is critical for capturing celestial objects like the Andromeda Galaxy (M31) or the Veil Nebula complex.

  • How do I install the Starlight Instruments 3.0" TFPE Adapter on my Astro-Physics telescope?

    Installation is straightforward. The adapter is designed to thread directly onto the rear cell of a compatible Astro-Physics OTA. Once the adapter is securely attached to the telescope, the 3.0" Feather Touch focuser is then mounted to the adapter, typically secured by its own locking collar.

    Does this 3.0" adapter allow the Feather Touch focuser to rotate for camera framing?

    Yes. The "Coupled Collar" in the product name indicates that this adapter facilitates full 360° rotation of the focuser. This allows you to orient your camera and imaging train to the ideal angle for your target without having to rotate the entire optical tube in its rings.

    Is this the correct adapter for a 2.5" or 3.5" Feather Touch focuser?

    No, this adapter is specifically designed for the Starlight Instruments 3.0" Feather Touch focuser family. Using it with other sizes will result in an incorrect fit. Starlight Instruments makes different adapters for their 2.5" and 3.5" models.

    What is the benefit of using this Starlight Instruments adapter over a generic one for my AP refractor?

    The primary benefit is a precision-engineered, direct-threaded connection. This Starlight Instruments adapter is machined to match the specific threads of Astro-Physics OTAs, ensuring a rigid, zero-flexure fit that is critical for maintaining optical alignment, especially with heavy cameras and filter wheels.

    Will this adapter maintain collimation when I rotate my heavy imaging train on my Astro-Physics refractor?

    Yes, it is designed for exactly this purpose. The coupled collar mechanism and precision machining provide a stable platform that prevents the tilt and image shift that can occur with less robust connection systems. This ensures your optical train remains perfectly aligned with the telescope's axis as you rotate it.

    What does 'TFPE Coupled Collar' mean for the Starlight Instruments 3.0" Adapter?

    This refers to the specific mechanical interface of the adapter. It combines a direct thread-on attachment to the telescope ("TFPE" likely denotes the thread specification) with a "Coupled Collar" that allows the attached 3.0" focuser body to be rotated independently and then locked securely in position.

  • Starlight Instruments 2-Year Warranty