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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 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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$210.00 - $210.00
$210.00
$210.00 - $210.00
$210.00

Starlight Instruments 2.0" Adapter for Sky-Watcher 180mm Maksutov Cassegrain

SI-A20-274

Adapts 2.0" Feather Touch focusers to Sky-Watcher 180mm Maksutov telescopes Creates a rigid, non-flexing mounting point for astrophotography Enabl...

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$210.00 - $210.00
$210.00
$210.00 - $210.00
$210.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.0" Adapter for United Optics 115mm Telescope

SI-A30-1903-16

Connects Starlight Instruments 3.0" Focusers Designed for United Optics 115mm Telescopes Also Fits Orion EON 115mm Refractors Provides a Secure, T...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.5" Adapter for William Optics FLT132, APM 130, and TS Photoline F7 Telescopes

SI-A35-503-WOFLT132

Connects a 3.5" Feather Touch focuser to select telescopes Compatible with William Optics FLT132 Compatible with APM 130 models Compatible with TS...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00

Starlight Instruments 2.0" Adapter to Attach Orion 0.85 Focal Reducer

SI-A20-287A

Connects 2.0" Feather Touch Focusers to the Orion 0.85x Reducer Provides a Secure, Direct-Threaded Connection Eliminates Tilt and Flexure from Com...

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$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.0" Adapter for Takahashi FS128 Telescopes

SI-A30-1903-145

Connects 3.0" Feather Touch Focusers to Takahashi FS128 Telescopes Enables Full 360° Focuser Rotation for Perfect Framing Precision-Machined from ...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00

Starlight Instruments 2.0" Adapter for Takahashi Accessories

SI-EA20-205-56

Connects Takahashi accessories to any standard 2.0" focuser Features male M56x0.75 threads for a secure connection Eliminates tilt and sag common ...

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$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00

Starlight Instruments 2.0" Adapter for Meade Lightbridge Dobsonian Truss Telescopes

SI-A20-200A-11

Enables installation of a 2.0" Starlight Instruments Feather Touch Focuser Specifically designed for Meade Lightbridge Dobsonian Truss Telescopes ...

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$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 2.5" Adapter for Stellarvue 80-115mm Refractors

SI-A25-2003-4

Connects 2.5" Starlight Instruments Feather Touch focusers Designed for Stellarvue 80mm, 90mm, 102mm, 105mm, and 115mm refractors Attaches to the ...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.0" Adapter Rack/Pinion for Orion, Celestron, Sky-Watcher Vixen & Synta Telescopes

SI-A30-1903-104

Adapts 3.0" Starlight Instruments Rack & Pinion Focusers Compatible with Select Orion, Celestron, Sky-Watcher, Vixen & Synta Telescopes Pr...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.0" Adapter for Takahashi FSQ85 and FC100 Telescopes

SI-A30-1903-85

Connects Starlight Instruments 3.0" focusers to select Takahashi telescopes Compatible with Takahashi FSQ85 refractors Compatible with Takahashi F...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$200.00 - $200.00
$200.00
$200.00 - $200.00
$200.00

Starlight Instruments 2.0" Adapter for ES Comet Hunter

SI-A20-293

Enables mounting a 2.0" Feather Touch focuser Designed for the Explore Scientific Comet Hunter Also fits select Explore Scientific 80mm refractors...

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$200.00 - $200.00
$200.00
$200.00 - $200.00
$200.00
$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Starlight Instruments 2.0" Adapter for Any 2.0" Opening

SI-A20-220

Adapts 2.0" Feather Touch focusers to standard 2.0" openings Enables use of high-precision focusers on multiple telescopes Securely holds the focu...

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$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00

Starlight Instruments True 3.0" Adapter for Aluminum Explore Scientific 127mm Telescope

SI-A32-3203-ES130A

Connects a Starlight Instruments True 3.0" Feather Touch focuser to your telescope Custom-designed for the Explore Scientific 127mm APO Triplet Re...

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$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00
$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00

Starlight Instruments 2.0" Adapter for Vixen VMC260L/VC260L Telescopes

SI-A20-265

Securely adapts 2.0" Starlight Instruments focusers to select Vixen telescopes Designed specifically for the Vixen VMC260L and VC260L models Featu...

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$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.0" Adapter for Astro-Physics 4" Telescopes

SI-A30-1903-21

Connects 3.0" Feather Touch Focusers to Astro-Physics 4" Telescopes Ensures a Rigid, Flex-Free Imaging Train Precision-Machined from High-Grade Al...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
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$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00

Starlight Instruments 2.0" Adapter for Orion, Celestron, Sky-Watcher Vixen & Synta Telescopes

SI-A20-292

Connects 2.0" Feather Touch focusers to select telescopes Designed for tubes requiring a 3.804" outer diameter adapter 4.0" length for correct mec...

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$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

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

SI-A30-1903-15

Connects Starlight Instruments 3.0" Feather Touch Focusers Custom-Fit for Astro-Physics 6" f/8 Triplet Telescopes Precision-Machined for a Solid, ...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.5" Adapter for Takahashi FS128 Telescopes

SI-A35-503-145

Connects a 3.5" Feather Touch Focuser to a Takahashi FS128 Machined from high-quality aluminum Ensures a rigid, non-flexing connection for imaging...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$40.00 - $40.00
$40.00
$40.00 - $40.00
$40.00

Starlight Instruments Larger Fine Focus Knob

SI-MAK

Ergonomic upgrade for finer focus control Larger diameter provides a smoother, more precise feel Ideal for high-magnification imaging and visual u...

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$40.00 - $40.00
$40.00
$40.00 - $40.00
$40.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 2.5" Adapter for Coronado Solar Max 90/Solar Max II

SI-A25-2003-21

Securely mounts a 2.5" Feather Touch focuser to your solar telescope Designed specifically for Coronado Solar Max 90 and Solar Max II models Enabl...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00

Starlight Instruments True 3.0" Adapter for Astro-Tech/GSO/TPO 10/12/16" RC SCOPES

SI-A32-3203-40

Enables mounting of Starlight Instruments True 3.0" focusers Compatible with Astro-Tech, GSO, and TPO 10", 12", and 16" RC telescopes Precision-ma...

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$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

Starlight Instruments JUMBO Fine Focus Knob

SI-BAK

Larger diameter for enhanced manual focus precision Improves tactile feel and reduces hand fatigue Direct-fit upgrade for most Feather Touch focus...

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$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
$90.00 - $90.00
$90.00
$90.00 - $90.00
$90.00

Starlight Instruments Reducer Adapter for 3.0" Compression Ring Opening to Accept 2.0" Accessories

SI-A35-505-3-2

Adapts 3.0" focusers to accept 2.0" accessories Precision-machined for a no-slip, concentric fit Maintains optical alignment for critical imaging ...

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$90.00 - $90.00
$90.00
$90.00 - $90.00
$90.00
$180.00 - $180.00
$180.00
$180.00 - $180.00
$180.00

Starlight Instruments 2.0" Adapter for Brandon Telescopes

SI-A20-266

Adapts Brandon Telescopes for 2.0" Accessories Telescope-Side Thread: 71x1mm Male Adapter Length: 3.0" Precision-Machined by Starlight Instruments...

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$180.00 - $180.00
$180.00
$180.00 - $180.00
$180.00