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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.

Parts and Accessories

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$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00

Starlight Instruments 3.0" End Cap for Sky-Watcher Corrector

SI-EC30-1905-65

Connects 3.0" Feather Touch Focusers to Sky-Watcher Correctors Provides a Secure, All-Threaded Connection Eliminates Tilt and Flexure from Compres...

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$150.00 - $150.00
$150.00
$150.00 - $150.00
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$150.00 - $150.00
$150.00

Starlight Instruments 3.0" End Cap for Takahashi M72X1 Male Threaded Accessories

SI-EC30-1905-72

Adapts 3.0" Feather Touch focusers to Takahashi accessories Provides a male M72x1 threaded connection Ensures a rigid, non-flexing imaging train F...

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$150.00 - $150.00
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$150.00 - $150.00
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$150.00 - $150.00
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$150.00 - $150.00
$150.00

Starlight Instruments 3.0" End Cap for William Optics Male Threaded Accessories

SI-EC30-1905-92

Adapts 3.0" Feather Touch focusers to William Optics accessories Provides a male M92x1 threaded connection Eliminates tilt and flexure from compre...

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$150.00 - $150.00
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$150.00 - $150.00
$150.00

Starlight Instruments 3.0" End Cap w/ 2.0" Compression Ring Opening

SI-EC30-1905-1
1 in stock

Adapts 3.0" Feather Touch Focusers for 2.0" Accessories Internal Brass Compression Ring for a Secure Grip Non-Marring Design Protects Eyepiece and...

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$200.00 - $200.00
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$200.00 - $200.00
$200.00

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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$200.00 - $200.00
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$250.00

Starlight Instruments 3.5" Adapter for "Takahashi TOA 130/FS 152 Telescopes

SI-A35-503-TOA130

Adapts 3.5" Feather Touch focusers to select Takahashi refractors Compatible with Takahashi TOA 130 and FS 152 optical tubes Precision-machined fr...

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$250.00 - $250.00
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Starlight Instruments 3.5" Adapter for APM 140 and 152mm Telescopes

SI-A35-503-156

Fits Starlight Instruments 3.5" Focusers Compatible with APM 140mm Telescopes Compatible with APM 152mm Telescopes High-Grade Aluminum Constructio...

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$250.00 - $250.00
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Starlight Instruments 3.5" Adapter for Astro Physics Grand tourismo 130

SI-A35-503-AP-GT130

Attaches a 3.5" Feather Touch Focuser to an Astro-Physics Grand Tourismo 130 Precision-machined from high-quality aluminum Ensures a rigid, flex-f...

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$250.00 - $250.00
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Starlight Instruments 3.5" Adapter for Astro-Tech 130

SI-A35-503-140

Securely adapts 3.5" Feather Touch focusers to Astro-Tech 130 refractors Machined from high-quality aluminum for maximum rigidity Anodized finish ...

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Starlight Instruments 3.5" Adapter for Older Astro-Physics 130mm Telescopes

SI-A35-503-200

Adapts 3.5" Feather Touch focusers to select Astro-Physics telescopes Fits older Astro-Physics 130mm models Also compatible with Astro-Physics 6" ...

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$250.00 - $250.00
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Starlight Instruments 3.5" Adapter for Sky-Watcher Esprit 120/150

SI-A35-503-103

Connects a 3.5" Feather Touch focuser to a Sky-Watcher Esprit 120 or 150 ED APO Precision-machined from high-grade aluminum for a rigid, no-flex c...

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$250.00 - $250.00
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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
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Starlight Instruments 3.5" Adapter for Takahashi FSQ106ED Telescopes

SI-A35-503-FSQ106ED

Precision-machined for the Takahashi FSQ-106ED telescope Enables mounting of a 3.5" Starlight Instruments Feather Touch Focuser Crafted from high-...

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$250.00 - $250.00
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$250.00 - $250.00
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Starlight Instruments 3.5" Adapter for Takahashi FSQ106N Telescopes

SI-A35-503-FSQ106

Adapts 3.5" Feather Touch focusers to the Takahashi FSQ106N Designed specifically for pre-2009 FSQ106N models Provides a rigid, thread-on connecti...

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$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00

Starlight Instruments 3.5" Adapter for Takahashi TOA 150 Telescopes

SI-A35-503-TOA150

Adapts 3.5" Feather Touch Focusers to Takahashi TOA-150 Telescopes Precision-Machined from High-Quality Aluminum Ensures a Rigid, No-Flex Connecti...

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$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00
$200.00 - $200.00
$200.00
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Starlight Instruments 3.5" Adapter for TEC Large Refractors

SI-A35-503TEC

Connects 3.5" Feather Touch Focusers to TEC Large Refractors Precision-Machined Aluminum Construction Ensures Perfect Optical Alignment Non-Thread...

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$200.00 - $200.00
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Starlight Instruments 3.5" Adapter for Teleskop Service TS130/TS150 Photoline

SI-A35-503-136

Connects 3.5" Feather Touch Focusers Designed for Teleskop Service TS130 Photoline Telescopes Designed for Teleskop Service TS150 Photoline Telesc...

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$250.00 - $250.00
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$200.00

Starlight Instruments 3.5" Adapter for TMB130 Telescopes

SI-A35-503TMB

Connects 3.5" Starlight Instruments focusers to TMB130 telescopes Ensures precise, rigid optical alignment Machined from high-quality aluminum Fin...

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$200.00 - $200.00
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$200.00 - $200.00
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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
Starlight Instruments 3.5" Adapter for William Optics FLT151, FLT152, FLT158 & TS152 Telescopes
$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00

Starlight Instruments 3.5" Adapter for William Optics FLT151, FLT152, FLT158 & TS152 Telescopes

SI-A35-503-WOFLT152

Connects a 3.5" Feather Touch Focuser to select William Optics telescopes Compatible with William Optics FLT151, FLT152, and FLT158 models Compati...

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$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00

Starlight Instruments 3.5" Adapter for William Optics FLT178

SI-A35-503-WOFLT178

Connects 3.5" Starlight Instruments focusers to William Optics FLT178 telescopes Precision-machined from a single block of high-grade aluminum Ano...

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$270.00 - $270.00
$270.00
$270.00 - $270.00
$270.00
$220.00 - $220.00
$220.00
$220.00 - $220.00
$220.00

Starlight Instruments 3.5" Base Curved w/ Leveling Screws

SI-BA35CL

Custom-machined to match your telescope's tube diameter Provides a rigid, stable platform for 3.5" Feather Touch focusers Integrated leveling scre...

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$220.00 - $220.00
$220.00
$220.00 - $220.00
$220.00
$180.00 - $180.00
$180.00
$180.00 - $180.00
$180.00

Starlight Instruments 3.5" Base Flat w/ Leveling Screws

SI-BA35FL

Designed for 3.5" Feather Touch Focusers Flat Base for Custom Telescope Builds Features Leveling Screws for Precise Collimation Mounting Hole Patt...

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

Starlight Instruments 3.5" Diameter Riser

SI-R35-4.0

3.5" Diameter: Precisely matches the mounting pattern of Starlight Instruments 3.5" focuser bases. 4.0" Height Extension: Adds 4.0 inches of hei...

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