Starlight Instruments 3.0" Adapter for Astro-Physics 6" F/8 Telescopes

This adapter serves as the physical link between a Starlight Instruments 3.0" Feather Touch focuser and the optical tube of an Astro-Physics 6" f/8 Triplet refractor. It is a required component for upgrading the telescope's original focuser to a larger, more robust Starlight model.

This adapter is designed specifically for the Starlight Instruments family of 3.0" focusers, such as the FTF30xxB-A series. It will not work with their 2.0", 2.5", or 3.5" models.

Installation is typically straightforward for users familiar with telescope hardware. The adapter is designed to thread securely onto the rear cell of the Astro-Physics 6" f/8 optical tube, providing a solid base onto which the 3.0" Feather Touch focuser is then mounted.

No. This adapter is machined with specific threads and dimensions to fit only the Astro-Physics 6" f/8 Triplet telescope. Using it with other models or brands will not work and may risk damaging your equipment.

While the stock focuser on an Astro-Physics telescope is excellent, upgrading to a 3.0" Starlight Instruments Feather Touch focuser offers several advantages for serious astrophotographers:

• Higher Load Capacity: Securely supports heavy imaging trains, including large format cameras, filter wheels, and off-axis guiders, without flexure.
• Feather Touch Precision: Provides extremely fine focus control, critical for achieving sharp stars with modern, small-pixel sensors.
• Rotatability: Allows for easy rotation of the entire imaging package to perfectly frame your target.

Yes. The adapter provides a fixed, secure attachment to the telescope tube. The rotational capability for framing is a feature of the Starlight Instruments 3.0" focuser itself, which is designed to rotate smoothly within the adapter's housing.