Skip to content
Price match 30-day returns* Talk to an astronomer before you buy
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)
Askar Worm-and-Gear Automatic Telescope Focuser (WAF)

Askar Worm-and-Gear Automatic Telescope Focuser (WAF)

by Askar
SKU ASK-ASKARWAF
CA$279.00 - CA$279.00
CA$279.00
CA$279.00 - CA$279.00
CA$279.00
Price Match Policy!
  • 20 kg Equivalent Load Capacity
  • 0.0182° Minimum Resolution Step Size
  • 1:99 Worm-Gear Stepper Motor
  • Native ASCOM Alpaca & Indigo Support
  • 373 g Body Weight
Backordered
Request Stock Alert
Availability Info
Qualifies for FREE Shipping in Canada on orders over $500.
Focus Step Calculator

Set the right autofocus step

Get the autofocus step size for the Askar Worm-and-Gear Automatic Telescope Focuser (WAF) with your telescope and camera, in each capture program.

Calculate step size
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Askar Worm-and-Gear Automatic Telescope Focuser (WAF)

    The Askar Worm-and-Gear Automatic Telescope Focuser (WAF) leverages a 1:99 gear reduction ratio to achieve a repeatable step resolution of just 0.0182°. Its worm-gear stepper motor provides an equivalent load capacity of 20 kg, suited to heavy imaging trains, all within a compact body weighing only 373 g.

    A 20 kg Capacity Worm-Gear Drive with 0.0182° Resolution

    The core of the Askar WAF is its worm-gear drive system, which delivers a maximum output torque of 20 kgf·cm. It is rated for an equivalent load of 20 kg in High Performance mode (15 kg in Balanced mode, which is recommended for everyday use). With a minimum resolution of 0.0182° per step, you can achieve critically sharp focus and generate precise V-curves for automated focusing routines in software like N.I.N.A.

    12V Power and Driverless ASCOM Alpaca Control

    The WAF uses the ASCOM Alpaca protocol for direct integration into modern astrophotography ecosystems, eliminating the need for traditional, platform-specific drivers. This allows you to control the focuser over a network from virtually any compatible software or the dedicated Askar App. Power is supplied via a standard DC-044 12V input requiring at least 1 A, while the data connection is handled through a modern Type-C port.

    Askar WAF vs. ZWO EAF: A 20 kg vs. 5 kg Load Capacity

    While the ZWO EAF is a benchmark for lightweight, 5V USB-powered focus control, the Askar WAF targets heavier imaging systems with its robust 12V motor and 20 kg load capacity.

    • ZWO EAF Advantage: The EAF's 5V USB power system can simplify cable management for smaller setups, and its market tenure means a wider availability of third-party mounting brackets for various telescopes.
    • Askar WAF Advantage: The WAF's worm-gear drive and 20 kgf·cm of torque give it a 20 kg rated load, against the 5 kg payload limit of the ZWO EAF. Its native ASCOM Alpaca support also offers a more modern, driverless connection compared to the EAF's reliance on traditional ASCOM drivers.

  • Can the Askar WAF handle a heavy imaging train on a large SCT, like a C11 with a filter wheel and cooled camera?

    On load, yes. With its 20 kg equivalent load capacity and 20 kgf·cm output torque, the Askar WAF is rated for such a train in High Performance mode (Balanced mode is rated 15 kg). Askar does not list Celestron SCT focusers among its compatible models, so check that the WAF bracket fits your focuser before ordering.

    How does the Askar WAF's 0.0182° resolution help when focusing a fast refractor like an Askar 103APO?

    The high resolution of 0.0182° per step allows for extremely fine adjustments, which is critical for fast optical systems that have a very narrow critical focus zone. This precision enables automated focusing software like N.I.N.A. to build accurate V-curves and achieve perfect, repeatable focus throughout an imaging session.

    What do I need to connect the Askar WAF to my computer and telescope?

    The Askar WAF body has a 12V DC input and a Type-C data port. You will need to supply your own 12V power source (minimum 1A). The package includes a 1m Type-C cable, a 1m 12V cable, a connecting bracket and three gear mounts with different inner bores to fit your focuser shaft.

    Do I need to install special drivers to use the Askar WAF?

    No. The focuser uses the ASCOM Alpaca protocol, which is driverless. As long as your control software (N.I.N.A., SGP, etc.) supports Alpaca, it will discover and connect to the WAF over your network or USB connection without needing a separate driver installation on your computer.

    Is the Askar WAF compatible with Indigo for macOS or Linux systems?

    Yes, the communication protocol is listed as supporting both ASCOM Alpaca and Indigo. This provides cross-platform compatibility, making it a viable option for users running astrophotography software on macOS or Linux-based systems like Astroberry or Stellarmate.

  • Motor Type Worm-gear stepper motor
    Gear Reduction Ratio 1:99
    Minimum Resolution 0.0182°
    Maximum Output Torque 20 kgf·cm
    Equivalent Load 20 kg
    Output Speed 2.6 rpm
    Body Weight 373 g
    Body Dimensions 101 mm × 47 mm × 43 mm
    Power Interface DC-044 12V
    Data Interface Type-C
    Input Current 1 A minimum
    Communication Protocol ASCOM Alpaca and Indigo
    Supported Software Askar APP, ASCOM Alpaca third-party software (e.g., N.I.N.A.)
    Compatible Focusers Askar / Sharpstar and Sky-Rover focusers, Sky-Watcher Newtonian and DOB focusers, TS refractor and Astro-Tech focusers
    Load Capacity 20 kg
    Fits Askar / Sharpstar full series of focusers, Sky-Rover full series of focusers, Sky-Watcher Newtonian and DOB series focusers, German TS refractor focusers, Astro-Tech focusers

    • WAF body

      × 1

    • connecting bracket

      × 1

    • M4x10 black cap head screws

      × 2

    • 3 gear mounts (socket) of different inner bores

      × 1

    • 2mm / 3mm hex keys

      × 1

    • T6 / T8 Torx wrenches

      × 1

    • network reset pin

      × 1

    • Type-C cable (1m)

      × 1

    • 12V cable (1m)

      × 1

    • user manual

      × 1

  • Askar 1-Year Warranty