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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 3.5" 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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Starlight Instruments 3.5" End Cap for Takahashi 72mm Male Threaded Accessories

SI-EC35-505-72

Adapts 3.5" Feather Touch focusers to accept Takahashi accessories Provides a female 72mm x 1mm threaded interface Ensures a rigid, non-flexing co...

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Starlight Instruments True 3.0" Base Flat w/ Leveling Screws

SI-BA32FL

Flat base for Starlight Instruments True 3.0" Feather Touch Focusers Features integrated leveling screws for precise collimation 4.4" center-to-ce...

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Starlight Instruments 3.0" Adapter for Explore Scientific ED102 Telescopes

SI-A30-1903-ES102

Enables use of 3.0" Feather Touch focusers Compatible with Explore Scientific ED102 Compatible with Meade Series 5000 102ED APO Triplet Precision-...

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Starlight Instruments 2.5" Adapter for The TMB92SS-Lightweight Telescopes

SI-A25-2003-11

Connects a 2.5" Feather Touch focuser to a TMB92SS-Lightweight telescope Precision-machined for a secure, no-flexure fit Ensures perfect optical a...

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Starlight Instruments 2.0" Adapter for Celestron C70 Telescope

SI-A20-224

Adapts Celestron C70 refractors to accept 2.0" focusers Enables use of Starlight Instruments Feather Touch focusers Allows for 2.0" diagonals and ...

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Starlight Instruments 3.0" Adapter for Borg 107FLTelescope

SI-A30-1903-107

Scope specific tube adapter for Borg 107FL TelescopesUse with focuser FTF3035B-A Specifications Use with FTF3035B-A Known To Fit Borg 107FL Tel...

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Starlight Instruments 3.0" Adapter TFPE Coupled Collar for Older AT111

SI-A30-1903-111

Adapts 3.0" Feather Touch Focusers Fits Older Astro-Tech AT111 Telescopes Telescope Thread: M124x1 Coupled Collar Design for Focuser Rotation Prec...

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Starlight Instruments 3.0" Adapter for Takahashi FS102/TSA102

SI-A30-1903-4

Adapts 3.0" Feather Touch Focusers Fits Takahashi FS102 & TSA102 Refractors Connects via M114x1 Male Threads Precision-Machined for a Solid, N...

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Starlight Instruments 2.0" Adapter for Takahashi CN212 and MEWLON 180, 210 and 250mm Telescopes

SI-A20-291

Connects 2.0" Feather Touch Focusers Fits Takahashi CN212, Mewlon 180, 210, & 250 Telescopes 71x1mm Female Thread 1.0" Length for Correct Spac...

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Starlight Instruments 3.0" Adapter for Explore Scientific & Meade 127mm w/ Aluminum OTA's

SI-A30-1903-ES130

Enables mounting a 3.0" Starlight Instruments Feather Touch Focuser Designed for Explore Scientific ED127 Aluminum OTAs Compatible with select Mea...

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Starlight Instruments 3.0" Adapter for Meade 178 ED Refractor

SI-A30-1903-101

Designed for Starlight Instruments 3.0" Focusers Custom-Fit for Meade 178 ED Refractors Provides a Rigid, No-Flex Mechanical Connection Enables Fo...

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Starlight Instruments 1.25" Base Flat w/ Leveling Screws

SI-BA15FL

Mounts 1.25" Feather Touch Focusers Designed for flat-surface telescope tubes Integrated leveling screws for precise optical alignment Ensures foc...

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Starlight Instruments 3.0" Base Flat w/ Leveling Screws

SI-BA30FL

For 3.0" Feather Touch Focusers Flat Base for Custom Mounting Includes Leveling Screws for Collimation 4.0" Center-to-Center Mounting Hole Pattern...

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Starlight Instruments Universal Dovetail Camera Mount

Options available

This Dovetail Camera mount works for control of lenses with Helical focusing on any DSLR camera. This can be controlled via PC or through a Hand p...

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Starlight Instruments 3.0" Adapter for RCOS Telescopes

SI-A30-1903-18

Connects 3.0" Feather Touch focusers to RC Optical Systems telescopes Ensures a rigid, zero-flexure connection for astrophotography Precision-mach...

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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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Starlight Instruments 2.0" Adapter for Takahashi CN212 and MEWLON 180, 210 and 250 NON CRS Telescopes

SI-A20-261

Adapts 2.0" Feather Touch Focusers Fits Takahashi CN212, Mewlon 180, 210, & 250 (Non-CRS) Thread Specification: 71x1mm Female Thread Adapter L...

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

SI-A20-3003-7

Connects 2.0" Rack/Pinion Feather Touch Focusers to select SCTs Compatible with Celestron C8, CPC8, C9.25, and CPC9.25 telescopes Compatible with ...

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Starlight Instruments 2.5" Base Flat w/ Leveling Screws

SI-BA25FL

Provides a flat mounting surface for custom telescope builds Integrated leveling screws for precise focuser collimation Designed specifically for ...

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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 2.0" Adapter for Tele Vue (IS) Refractor Telescopes

SI-A20-228

Connects 2.0" Feather Touch focusers to Tele Vue IS refractors Precision-machined for a secure, zero-flexure fit Enables use of heavy imaging trai...

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Starlight Instruments 3.0" Adapter for William Optics FLT98, Carbon Fiber Telescopes

SI-A30-1903-22

Connects 3.0" Feather Touch focusers to the William Optics FLT98 Designed specifically for the Carbon Fiber tube version with the Red Tube Adapter...

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Starlight Instruments Stock Base Insert

SI-BA20-INSERT

Genuine Starlight Instruments Component Ensures Proper Focuser Base Installation Designed for a Precise Mechanical Fit Maintains Focuser Collimati...

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