Parts and Accessories

Accommodates finders with a 45mm to 53mm outer diameter Designed for Starlight Instruments Feather Touch focusers Precision-machined for a zero-fl...

Securely holds finderscopes and guide scopes from 50mm to 60mm in diameter Precision adjustment screws for accurate, stable alignment Designed for...

Mounts directly to 2.5", 3.0", and 3.5" Feather Touch focusers Includes a red dot finder for intuitive, zero-magnification aiming Provides a stabl...

Adds electronic focus control to William Optics RedCat/SpaceCat telescopes Based on the proven Starlight Instruments Handy Stepper Motor (HSM) Ena...

Provides manual focus control for the Focuser Boss II system Tactile push-button interface for use at the eyepiece Ideal for quick visual adjustme...

Adds automated, repeatable focusing to your telescope Features a simple manual focus override knob Built-in thermistor for temperature-compensated...

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

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

Lightweight design minimizes telescope balance issues 10:1 dual-speed fine focus for critical adjustments 8-10 pound lifting capacity supports mos...

Adds Feather Touch dual-speed fine focusing to stock Takahashi focusers Fits Takahashi Epsilon E180 and Mewlon series telescopes Retrofit design i...

Adds 10:1 ratio dual-speed fine focusing Direct retrofit for specific Takahashi 2.5" focusers Replaces only the pinion assembly, retaining the ori...

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

Adds acclaimed Feather Touch dual-speed focusing to your existing focuser Direct retrofit for post-2005 Tele Vue OTAs with 2.4" black draw tube fo...

Adds Feather Touch dual-speed focusing to stock Tele Vue focusers Provides ultra-fine control for high-magnification viewing and imaging Includes ...

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

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

Designed for the FSB-CH4055 Finderscope Base Compatible with 2.5" Feather Touch Focusers Compatible with 3.0" Feather Touch Focusers Compatible wi...

Connects Orion 0.85x Reducer to M42 T-Thread Cameras Engineered by Starlight Instruments Ensures a Rigid, Non-Flexing Imaging Train Standard M42 F...

Lifting Capacity: In excess of 56 pounds Drive System: Positive-engagement timing belt Manual Override: Yes, via fine focus knob Temperature Senso...

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