Starlight Instruments Stepper Motor
Best precision focusing upgrade for dedicated astrophotography enthusiasts.
This motor unit bridges the gap between automated precision and tactile control. By integrating a temperature thermistor and a clever manual override, it allows for seamless digital focusing without sacrificing the ability to make quick, hands-on adjustments. It is an essential upgrade for those who demand both consistency and flexibility.
$370.00
at
Cloudbreakoptics
More Focuser Boss options
Who it's for
- Astrophotographers who value both automated precision and manual tactile control
- Serious imagers requiring pinpoint star focus for long-exposure photography
- Feather Touch owners seeking a native and reliable motorized upgrade
Who should skip it
- Budget-conscious hobbyists looking for a simple, low-cost focusing solution
- Minimalist setups preferring all-in-one integrated focusing hardware
- Visual observers using multiple telescopes with varying focuser brands
Performance breakdown
Focusing Precision
High-resolution stepping ensures razor-sharp images for critical astrophotography.
Manual Versatility
The clever over-ride knob bridges the gap between automated and manual.
Thermal Stability
Integrated thermistor keeps focus locked despite shifting nighttime temperatures.
System Integration
Seamlessly pairs with the Focuser Boss II for a unified workflow.
Build Compatibility
Broad support for premium focusers makes this an easy upgrade choice.
Installation Ease
Requires some technical patience but rewards users with rock-solid performance.
Key Specs
Compatibility
Focuser Boss II electronic focuser
Motor Type
Stepper motor
HSM20 Resolution
19,450 steps per inch
HSM30/35 Resolution
24,300 steps per inch
Compatibility
Fits 2.0, 2.5, 3.0, 3.5 inch Feather Touch focusers, Astro Physics focusers, and Takahashi focusers
Know before you buy
Still have a question?
Ask Metto anything about the Starlight Instruments Stepper Motor before you decide.