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Starlight Instruments Focuser Accessories

Starlight Instruments focuser accessories are the parts that fit a Feather Touch focuser to a specific telescope and connect it to the rest of your train. Telescope adapters exist for many refractors, including Takahashi FSQ85 and FSQ106N, Sky-Watcher Esprit and Equinox, William Optics FLT and Explore Scientific models.

Threaded end caps such as M68 and M48, flat and curved bases with leveling screws, and PTFE coupled collars complete the range.

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Starlight Instruments 3.0" Adapter for AT106 Telescope

SI-A30-1903-AT106

Connects 3.0" Feather Touch Focusers to Astro-Tech AT106 Telescopes Ensures a rigid, flex-free connection for astrophotography Features M113x1 thr...

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Starlight Instruments 2.0" Adapter for Astro-Tech 10, 12, and 16" RC and GSO 10/12/16" Telescopes

SI-A20-272

Enables mounting of a 2.0" Feather Touch Focuser Designed for Astro-Tech 10", 12", and 16" RC Telescopes Designed for GSO 10", 12", and 16" RC Tel...

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Starlight Instruments 2.0" Adapter RP for Astro-Tech 6" and 8" RITCHIE CHRETIEN Telescopes

SI-A20-3003-1

Connects a Starlight Instruments 2.0" Rack and Pinion focuser to your telescope Designed for Astro-Tech 6" and 8" Ritchey-Chrétien models Also com...

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Starlight Instruments 2.0" Adapter for Astro-Tech 65mm Telescopes

SI-A20-242

Connects Starlight Instruments 2.0" focusers to Astro-Tech 65mm telescopes Ensures a rigid, direct-thread mounting for astrophotography Machined s...

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Starlight Instruments 2.0" Adapter for GSO Carbon Truss Newtonian

SI-A20-305

Enables Installation of 2.0" Feather Touch Focusers Custom-Designed for GSO Carbon Truss Newtonians Two-Piece Design Utilizes Stock Mounting Plate...

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Starlight Instruments 3.0" Adapter for Meade 16" SCT Telescopes

SI-A30-1903-10

Connects 3.0" Feather Touch Focusers to Meade 16" SCTs Telescope Thread: 4.0"x16tpi Female Adapter Length: 2.3 inches Ensures a Rigid, Non-Flexing...

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Starlight Instruments 3.5" Adapter Astro Physics Threaded Optical Tube Assemblies

SI-A35-503AP

Connects 3.5" Feather Touch focusers to Astro-Physics OTAs Provides a secure, direct-threaded connection Machined from high-grade aluminum for max...

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Starlight Instruments 3.0" Adapter for TV127is w/o Feather Touch Pinion Assembly

SI-A30-1903-26

Enables mounting a 3.0" Feather Touch focuser on a TeleVue TV127is Designed for older TV127is models without the stock Feather Touch pinion Provid...

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Starlight Instruments 2.0" Adapter for Orion Sky Quest, XT Intelliscope Telescopes

SI-A20-240

Enables use of 2.0" Feather Touch focusers on compatible telescopes Fits Orion Sky Quest, XT Classic, and XT Intelliscope models (8", 10", 12", 14...

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Starlight Instruments 2.0" Adapter for Astro-Tech 6", 8" and GSO 6", 8" RC Telescope, WO Newer Megrez 80/90mm and WO GT81 Telescope

SI-A20-271

Connects a 2.0" Starlight Instruments Feather Touch Focuser to your telescope Designed for Astro-Tech and GSO 6" and 8" Ritchey-Chrétien telescope...

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Starlight Instruments 2.0" Adapter for Astro-Physics Stowaway

SI-A20-232

Enables mounting a 2.0" Feather Touch Focuser Designed specifically for pre-2018 Astro-Physics Stowaway models Precision-machined for a secure, th...

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Starlight Instruments 2.0" Adapter for Celestron & Meade fork Mounted SCT Telescopes

SI-A20-295

Enables mounting of 2.0" Feather Touch focusers Designed for Celestron & Meade fork-mounted SCTs Attaches to the standard 2"-24tpi rear cell t...

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Starlight Instruments 3.0" Adapter for Older Astro Physics 5" F6 Telescopes

SI-A30-1903-25

Connects 3.0" Feather Touch focusers to older Astro-Physics 5" f/6 refractors Enables the use of modern, heavy-duty focusers on classic telescopes...

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Starlight Instruments 1.25" Adapter for Astro-Tech 6", 8" and GSO 6", 8" RC Telescope

SI-A15-1503-2

Enables use of 1.25" eyepieces and accessories Designed for Astro-Tech & GSO 6" and 8" Ritchey-Chrétien telescopes Features a secure 90x1mm fe...

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Starlight Instruments 2.0" Adapter for Takahashi FS78/FSQ85/FC100DF Telescopes

SI-A20-304

Designed for Starlight Instruments 2.0" Feather Touch Focusers Compatible with Takahashi FS78 Refractors Compatible with Takahashi FSQ85 Astrograp...

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Starlight Instruments 3.0" Adapter for Explore Scientific CF EDT102 w/ Sliding Dew Shield

SI-A30-1903-ES102CF

Direct Fit for Explore Scientific EDT102 CF: Engineered specifically for the carbon fiber version of the 102mm EDT refractor with a sliding dew s...

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Starlight Instruments 2.0" Adapter Rack/Pinion Used to Attach to Any 2" Feather Touch Crayford Adapter or 2" Base

SI-A20-3003-9

Adapts 2" Feather Touch Rack & Pinion focusers for use with Crayford mounts Compatible with all 2" Feather Touch Crayford focuser adapters Com...

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Starlight Instruments True 3.0" Adapter TFPE Coupled Collar

SI-A32-3203-1

Connects FTF32XX Series True 3.0" Feather Touch Focusers Coupled Collar Design for Secure, Rotatable Mounting Enables 360° Focuser Rotation for Pr...

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Starlight Instruments 2.0" Adapter for Celestron C11 /C14 SCT Telescopes

SI-A20-223

Adapts 2.0" Feather Touch focusers to large-format Celestron SCTs Threads onto the 3.29"-16TPI rear cell of C11 and C14 OTAs Adds a minimal 0.45" ...

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Starlight Instruments 3.0" Adapter for William Optics FLT110 w/ TEC F6.5 Lens Telescopes

SI-A30-1903-6A

Connects Starlight Instruments 3.0" focusers to specific telescope models Designed for the William Optics FLT110 with TEC F6.5 Lens Provides a sec...

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Starlight Instruments 2.0" Adapter for Celestron, 102mm Telescope

SI-A20-230

Adapts Celestron 102mm Telescopes Accepts Starlight Instruments 2.0" Feather Touch Focusers Enables Precision Focusing for Astrophotography Machin...

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Starlight Instruments 3.0" Adapter for Carbon Fiber Explore Scientific 127mm Telescope EDT

SI-A30-1903-ES127A

Connects 3.0" Feather Touch Focusers to the ES 127mm Carbon Fiber EDT Enables Precision, Zero-Shift Focusing for Astrophotography Precision-Machin...

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Starlight Instruments 2.0" Adapter for Tele Vue Renaissance

SI-A20-C8071

Adapts Tele Vue Renaissance telescopes for Starlight Instruments 2.0" focusers Enables secure mounting of modern, high-precision focusers Machined...

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Starlight Instruments 2.5" Adapter for Meade 10, 12, 14" SCT Telescopes

SI-A25-2003-13

Connects 2.5" Feather Touch focusers to large Meade SCTs Compatible with Meade 10", 12", and 14" SCT optical tubes Designed to thread onto the FTF...

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