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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Askar SQA55 Autofocus Kit
Askar SQA55 Autofocus Kit

Askar SQA55 Autofocus Kit

by Askar
SKU ASK-SQA55AFKIT
$87.00 - $87.00
$87.00
$87.00 - $87.00
$87.00
Price Match Policy!
  • Designed specifically for the Askar SQA55 Astrograph
  • Enables autofocus with nearly all brands of electronic focusers
  • Includes 4 MXL belts and 2 pulleys for broad compatibility
  • Tensioner pulley system eliminates backlash for precise focusing
  • Compact design preserves space for cameras and accessories
1 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Askar SQA55 Autofocus Kit

    The Askar SQA55 Autofocus Kit is an engineered hardware solution for adding precise, automated focusing to your SQA55 astrograph. This comprehensive kit includes 4 different MXL synchronous belts, 2 MXL pulleys, and 2 L-shaped hollow adapter plates to ensure compatibility with virtually any electronic focuser. With all necessary M3 and M4 screws included, you can achieve a rigid, backlash-free connection for repeatable, accurate focusing across every imaging session.

    A Tensioner Pulley System for 0-Backlash Focusing

    Standard belt-drive systems for electronic focusers often suffer from unavoidable belt slack, which introduces backlash and compromises focusing accuracy. The Askar SQA55 AF Kit solves this directly with an integrated tensioner pulley, allowing you to adjust the synchronous belt to a perfectly tight state. This eliminates slippage and ensures that every step of the focuser motor translates into precise, repeatable focus adjustments.

    Universal Fit: 4 Belts and 2 Pulleys for Any EAF

    Unlike single-brand solutions, the SQA55 AF Kit is designed for near-universal compatibility. The inclusion of 4 different length MXL synchronous belts and 2 different pulleys ensures you have the right components to match the hardware of almost any electronic focuser on the market. This flexibility means you are not locked into a single ecosystem and can easily upgrade or change your focuser brand in the future without needing a new mounting kit.

    Flexible M4 Mounting for Any Imaging Train

    Many stock adapter plates for electronic focusers are excessively long, creating mechanical interference with cameras, filter wheels, or rotators. The SQA55 AF Kit features a compact adapter bracket and 2 versatile L-shaped hollow plates secured by M4 screws. This modular design can be disassembled and reconfigured in multiple positions on the SQA55 lens tube, reserving critical space for your imaging train and preventing collisions.

  • What is the advantage of the Askar SQA55 Autofocus Kit over a standard EAF adapter?

    The Askar SQA55 AF Kit offers three key advantages. First, its tensioner pulley eliminates belt backlash for higher focusing accuracy. Second, its compact adapter plates are specifically designed to avoid interference with cameras and other accessories. Finally, its modular design allows the entire assembly to be installed in different positions on the SQA55, freeing up space where you need it most.

    What is focusing backlash and how does the Askar SQA55 AF Kit prevent it?

    Backlash is a slight lag or "slop" in a mechanical system, often caused by a loose drive belt. In focusing, it means the focuser doesn't move immediately or precisely when the motor turns, leading to inaccurate results. The SQA55 AF Kit prevents this by using a dedicated tensioner pulley that keeps the belt tight, ensuring there is no slack and every motor movement translates directly into focuser travel.

    Can I use the Askar SQA55 Autofocus Kit with a Pegasus Astro Cube or other large EAF?

    Yes. The kit is designed for broad compatibility with focusers that may have non-standard hole spacing. The L-shaped adapter plates have a hollow design. To adjust for a wider focuser body, you can loosen the M4x12mm fixing screws, flip the plates, adjust the spacing to the correct position, and retighten the screws to lock them in place.

    I use a full-frame camera and filter wheel on my Askar SQA55. Will this kit get in the way?

    This kit is specifically designed to prevent this problem. Unlike many oversized stock mounting plates, the Askar SQA55 AF Kit is compact. Furthermore, you can mount the entire focuser assembly in different positions around the SQA55's focuser body to ensure it does not interfere with your specific imaging train configuration.

    Why does the Askar SQA55 Autofocus Kit include 4 different MXL belts?

    Different brands and models of electronic focusers use different sized drive pulleys and have varying mounting dimensions. Including 4 belts of different lengths ensures that you will have the correct size to achieve a perfect fit with your specific electronic focuser, eliminating the need to source a custom belt separately.

    Will I need to buy extra hardware to attach a ZWO EAF to my SQA55 with this kit?

    No, the kit is all-inclusive. It provides a complete set of mounting hardware, including 2 M4×10mm screws, 2 M3×10mm screws, and 2 M4×12mm screws, along with 3 Allen wrenches. This covers the hardware needed for most popular electronic focusers, including the ZWO EAF.

  • Compatibility Askar SQA55 Astrograph
    Focuser Compatibility Compatible with most electronic focuser brands

    • MXL Synchronous Belts

      × 4

    • MXL Synchronous Pulleys

      × 2

    • Adapter Bracket

      × 1

    • L-Shaped Hollow Plates

      × 2

    • Allen Wrenches

      × 3

    • M4×10mm Screws

      × 2

    • M3×10mm Screws

      × 2

    • M4×12mm Screws

      × 2

  • Askar 1-Year Warranty