Starfield Optics Astroasis Focuser with clutch (SF-AOF)
$299.99
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Starfield Optics Astroasis Focuser with clutch (SF-AOF)
$299.99
Integrated Clutch
Seamless Manual Motor Switch
Bluetooth Control
Wireless Mobile Device Operation
Heavy Payload
Supports Over 5kg Load
Micron Precision
Sub Micron Step Distance
Ultra Low Backlash
Smooth Meshing Gear Drive
Easy Mounting
Single Screw Clamp System
Precision Astronomy FocusNext Generation Motorized Telescope Focusing
The Astroasis Focuser with Clutch is an advanced electronic focuser designed specifically for astronomical observation and deep-sky astrophotography. Featuring wireless Bluetooth control, high load capacity, and an innovative self-locking clutch mechanism, this electronic focuser delivers micron-level focus adjustments without compromising manual tuning flexibility.
Ultimate Astrophotography ControlHigh Precision Gear Driven Performance
Engineered for maximum versatility and reliability, the Astroasis Focuser with Clutch utilizes a high-reduction Japanese NPM stepper motor paired with dual precision gears to deliver sub-micron step resolution under loads exceeding 5kg. Its integrated self-locking clutch allows astrophotographers to instantly switch between automated motor driven focusing and smooth manual adjustment. With full ASCOM driver compatibility, driver-free USB HID support, and onboard temperature sensors, this electronic telescope focuser ensures perfect focus stability during long-exposure astrophotography sessions.
Technical SpecificationsEngineering Data and Performance Specs
Motor Type
Japanese NPM High Reduction Stepper Motor
Max Payload Capacity
> 5 kg (11 lbs) (weight)
Focus Precision
< 1 micron per step resolution
Backlash Performance
1/3 to 1/5 of standard focusers
Interface Support
ASCOM, USB HID Driver-Free
Wireless Control
Bluetooth Mobile Connectivity
Sensors
Dual Board and Ambient Temperature Probes
Power Supply Required
12V DC
Mounting Type
Clamp Mount with Auxiliary Step Positioning
Key System FeaturesAdvanced Design for Imaging Systems
Dual Mode ClutchSelf-locking switch for manual or motorized control
Bluetooth ConnectivityWireless mobile device control and firmware updates
High Load CapacityProven net load capability over 5kg
Sub-Micron PrecisionLess than 1 micron per step focusing resolution
Minimal Gear BacklashReduced backlash down to 1/3 of typical focusers
Single Screw MountQuick clamp installation with step positioning
Dual Temperature SensorsInternal board and external ambient temperature probes
ASCOM & USB HID SupportNative ASCOM compatibility and driverless USB operation
Clutch FunctionEasy and fast switching between motor and manual focusing
Bluetooth FunctionMobile devices such as mobile phones can be used to control the focuser via Bluetooth
Small SizeRound appearance with small size
Heavy Load CapableTesting indicates that it can drive net loads more than 5Kg
Small BacklashCarefully selected motor model and product design results in small backlash
Easy to InstallEasy to install or uninstall focuser body. Only one screw needs to be used to install or uninstall focuser body. And it can be installed on many telescope focusers
Highly IntegratedExcept for the ambient temperature probe, all functions and components, including motor, controller board etc. are implemented and integrated in the single small-sized focuser body
More FeaturesSupports the ASCOM interface; Supports electronic auto-focusing; Has beep generator for tips or alarms
Frequently Asked QuestionsEverything you need to know
What payload can the Astroasis Focuser with Clutch support?
The Astroasis Focuser with Clutch uses a high-reduction Japanese NPM stepper motor capable of steadily handling net imaging loads over 5 kg (11 lbs), making it ideal for heavy astrophotography camera setups.
How does the clutch work on the Astroasis Focuser with Clutch?
The self-locking clutch mechanism uses two meshing gears. Disengaging the clutch allows for smooth manual focusing by hand, while re-engaging it seamlessly connects the motor for precision electronic autofocusing.
Can I control the Astroasis Focuser with Clutch wirelessly?
Yes, the Astroasis Focuser with Clutch features built-in Bluetooth functionality, allowing control, focus adjustments, and firmware updates directly from a smartphone or tablet.
Is the Astroasis Focuser with Clutch compatible with ASCOM software?
Yes, the Astroasis Focuser with Clutch fully supports ASCOM interface standards and USB HID device interfaces for driver-free operation on Windows imaging software.
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