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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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$40.00 - $40.00
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$40.00 - $40.00
$40.00

Starlight Instruments 1.25" Adapter for Lunt 50mm Solar Telescope

SI-A15-1503-1

Connects 1.25" eyepieces and accessories Designed specifically for the Lunt 50mm Solar Telescope Precision-machined by Starlight Instruments Ensur...

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$40.00 - $40.00
$40.00
$40.00 - $40.00
$40.00
$430.00 - $430.00
$430.00
$430.00 - $430.00
$430.00

Starlight Instruments Micro Pinion Assembly Retrofit - fits Takahashi 2.7" Diameter Focusers

SI-MPA-TAK2.7

Adds 10:1 dual-speed fine focusing to stock Takahashi focusers Directly fits Takahashi 2.7-inch diameter focusers Planetary reduction mechanism pr...

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$430.00 - $430.00
$430.00
$430.00 - $430.00
$430.00
$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00

Starlight Instruments 6-32 Thumb Screw

SI-TS-222 Thumb Screw

Machined 6-32 thumb screw Enables tool-free focuser rotation Available in 1.25", 2.0", and 2.5" shaft lengths Improves ergonomics, especially with...

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$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00
$440.00 - $440.00
$440.00
$440.00 - $440.00
$440.00

Starlight Instruments Micro Pinion Assembly Retrofit - fits TeleVue (Pre 2005 OTA) w/ CHROME Draw Tube

SI-MPA-TEL0Bb

Adds dual-speed fine focusing to original TeleVue focuser bodies Direct retrofit for pre-2005 TeleVue OTAs with chrome draw tubes Internal brake s...

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$440.00 - $440.00
$440.00
$440.00 - $440.00
$440.00
$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00

Starlight Instruments 3.0" End Cap for 2.7" Astro-Physics Thread

SI-EC30-1905-3

Adapts 3.0" Feather Touch focusers to 2.7" accessories Female Thread: 2.7" x 24 TPI Matches Astro-Physics accessory thread standard Enables a full...

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$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

Starlight Instruments Mounting Bracket for Focuser Boss II Control Hub

SI-19691

Direct Attachment for Focuser Boss II Hub Universal Mounting Compatibility Provides a Secure, Stable Platform Streamlines Cable Management Desc...

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$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
$180.00 - $180.00
$180.00
$180.00 - $180.00
$180.00

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

SI-EC32-3205-3CR

Adapts Feather Touch True 3.0" focusers Accepts 3.0" barrel eyepieces and accessories Features a non-marring brass compression ring Provides a sec...

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$180.00 - $180.00
$180.00
$180.00 - $180.00
$180.00
$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00

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

SI-EC32-3205-1

Adapts True 3.0" Feather Touch focusers to use 2.0" accessories Features a non-marring brass compression ring Provides a secure, rigid connection ...

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$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00

Starlight Instruments 2.0" Adapter for Older William Optics Megrez 90

SI-A20-226

Connects a 2.0" Feather Touch Focuser to an older William Optics Megrez 90 Precision-machined for a secure, perfectly aligned fit Enables a critic...

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$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00
$140.00 - $140.00
$140.00
$140.00 - $140.00
$140.00

Starlight Instruments 1.25" Base Curved w/ Leveling Screws

SI-BA15CL

Custom-machined to your telescope's tube radius Integrated leveling screws for precise focuser collimation Designed for 1.25" Starlight Instrument...

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$140.00 - $140.00
$140.00
$140.00 - $140.00
$140.00
$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00

Starlight Instruments 2.0" Adapter for MK190 Maksutov-Newtonian, Intes Alter MN84 Mak Newton, & ES8" Astrograph w/CF OTA

SI-A20-MN190

Enables mounting a 2" Feather Touch focuser Compatible with Sky-Watcher MN190 Maksutov-Newtonian Compatible with Intes Alter MN84 Maksutov-Newtoni...

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

Starlight Instruments True 3.0" Adapter for Carbon Fiber Explore Scientific 127/140mm Telescopes

SI-A32-3203-ES127A

Connects a Starlight Instruments True 3.0" Focuser to select telescopes Designed specifically for Explore Scientific 127mm and 140mm Carbon Fiber ...

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

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

SI-A30-1903-40
1 in stock

Adapts 10", 12", and 16" RC Scopes For Starlight Instruments 3.0" Focusers Compatible with Astro-Tech, GSO, and TPO Models Precision-Machined for ...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00

Starlight Instruments 2.0" Adapter for Orion Sky Quest, XT Intelliscope Telescopes w/ Bottom Mounting Hole Not Circular

SI-A20-241

Enables mounting of 2.0" Feather Touch focusers Designed for Orion Sky Quest XT Classic & Intelliscope models Compatible with 8", 10", 12", an...

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$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00

Starlight Instruments 2.0" Adapter for Tele Vue Refractor Telescopes

SI-A20-227

Enables mounting a 2.0" Starlight Instruments focuser Compatible with Tele Vue TV-76, TV-85, TV-101, TV-102, & TV-127 Machined for a direct, s...

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$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00
$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Starlight Instruments 2.0" Adapter for Celestron & Meade Small Thread SCT Telescopes

SI-A20-215

Connects Starlight Instruments FTF2015BCR focusers to select SCTs Fits Celestron 8", CPC 800, 9.25", and CPC 9.25 models Compatible with Meade 8" ...

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$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00

Starlight Instruments 3.0" Adapter TFPE Coupled Collar

SI-A30-1903-1

Connects 3.0" FTF30xx Series Feather Touch Focusers Telescope-Side Thread: 109x1mm Male Coupled Collar Design for Focuser Rotation Precision-Machi...

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$160.00 - $160.00
$160.00
$160.00 - $160.00
$160.00
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

Starlight Instruments 3.0" Adapter for Explore Scientific 127 Aluminum OTA's w/ Sliding Dew Shield

SI-A30-1903-ES130A

Custom-designed for Explore Scientific 127mm Aluminum OTAs Enables mounting of a 3.0" Starlight Instruments Feather Touch Focuser Machined from hi...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00
$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00

Starlight Instruments 2.0" Adapter for Lunt Telescopes

SI-A20-399

Enables mounting a 2.0" Feather Touch focuser on compatible Lunt telescopes Provides a secure, direct-fit mechanical connection Machined specifica...

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$120.00 - $120.00
$120.00
$120.00 - $120.00
$120.00
$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Starlight Instruments 2.0" Adapter 3.5" Outer Diameter No Thread for Takahashi 4.0" Focuser

SI-A20-268

$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
$110.00 - $110.00
$110.00
$110.00 - $110.00
$110.00

Starlight Instruments 2.0" Adapter Rack/Pinion for Astro-Physics 2.7" Female Thread

SI-A20-3003-5

$110.00 - $110.00
$110.00
$110.00 - $110.00
$110.00
$220.00 - $220.00
$220.00
$220.00 - $220.00
$220.00

Starlight Instruments 3.5" End Cap Collet Style w/ 2.0" Opening

SI-EC35-505

Fits all Starlight Instruments 3.5" Feather Touch focusers Provides a secure 2.0" opening for accessories Collet-style clamp ensures perfect cente...

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$220.00 - $220.00
$220.00
$220.00 - $220.00
$220.00
Starlight Instruments 2.0" Adapter for Meade 10, 12, 14" SCT Telescopes, for FTF2008BCR Focuser
$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Starlight Instruments 2.0" Adapter for Meade 10, 12, 14" SCT Telescopes, for FTF2008BCR Focuser

SI-A20-214

Connects FTF2008BCR Focuser to Meade SCTs Compatible with 10", 12", and 14" Meade SCT Models Threads Directly to Large SCT Visual Back Threads Pro...

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$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
Starlight Instruments 2.0" Adapter for Vixen Fluorite 102/900, Celestron 102 & Meade 102-F9 Telescopes
$180.00 - $180.00
$180.00
$180.00 - $180.00
$180.00

Starlight Instruments 2.0" Adapter for Vixen Fluorite 102/900, Celestron 102 & Meade 102-F9 Telescopes

SI-A20-288

Enables mounting a 2.0" Starlight Instruments focuser Designed for Vixen Fluorite 102/900 refractors Compatible with Celestron 102 and Meade 102-F...

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