Telescope-Focusers-Askar AF Kit for SQA55 Refractor

The Premium SQA55 Electronic Focuser Mount Solution!

Adding electronic focusing precision to your helical focus telescope can be a quirky process, but not with the SQA55! Featuring an upgraded focuser bracket, a replacement coupler (synchronous pulley), and three sizes of synchronous belts, this kit from Askar adapts the most popular bracket-style electronic focusers to your refractor in a compact and precise way. Upgrade your SQA55 the easy way, with the AF Kit for SQA55 Refractors!

Helical focusers allow for a sleek and streamlined telescope design compared to some other focuser designs, however connecting electronic focusers to them usually is anything but. Askar has changed this reality for their excellent SQA55 refractor with this auto-focus upgrade kit! While installing a bracket-style electronic focuser to this refractor is possible, it requires a properly sized belt and synchronous pulley, can suffer from a bit of backlash, could leave portions of the bracket in the way of your gear, and just generally does not match the otherwise premium and sleek look of the scope. The AF Kit addresses all of these concerns with an upgraded connection system that can adapt to most popular bracket-style electronic focuser options on the market in a sleek and compact footprint, a belt tensioner that helps eliminate backlash, and all the parts you need to adapt your electronic focuser to the SQA55!

Simple Installation

Upgrading your SQA55 scope with the Askar AF Kit for SQA55 Refractor can be done in three main steps:

• Step 1 – Set the fine focus ring to the “0” position, and the coarse focus ring to the “20m” position. Unscrew and remove the coarse focus ring’s lock knob. Then place the main AF Kit bracket in the SQA55’s quick release shoe, adjusting the rear set screw with the 3 mm hex key until the bracket expands and locks in place.

• Step 2 – Attach the “foot” (shorter section) of the two L-shaped brackets to the main bracket with the two M4x12 mm screws. Depending on the hole pattern of your electronic focuser the foot of the L-shaped brackets may need to face inwards or outwards. Now attach the electronic focuser to the longer upright sections of the L-shaped brackets, using either the included two M4x10 mm or M3x10 mm screws (check your electronic focuser manual if you’re unsure of which to use).

• Step 3 – Install the included coupler (synchronous pulley) on the electronic focuser shaft. Loop the smallest belt that will comfortably fit over the pulley and coarse focus ring, ensuring this is looped under the tensioner wheel. Tighten the tensioner screw on the main bracket until snug. When installed correctly, tension wheel will pull the belt inwards.

Step 1

Step 2

Step 3

Premium, All-In-One Upgrade Kit!

The Askar AF Kit for SQA55 Refactors includes all the pieces you need for a sleek, premium, and simple upgrade process for your scope and bracket-style electronic focuser of choice.

Sleek and Simple Connection
Designed for the SQA55 refractor allows you to attach a bracket style electronic focusers without overhanging brackets that impact your ability to attach gear and look out of place. With confirmed compatibility with the ZWO EAF, QHYCCD QFocuser, iOptron iEAF, and the Pegasus Astro FocusCube 3, this kit provides a clean and secure installation for the most popular bracket-style electronic focusers on the market and is adjustable for use with a wide variety of other models.

Helps Banish Backlash
Standard belt connected helical focuser setups can suffer from backlash due to suboptimal belt tensioning, introducing play and impacting autofocus algorithms, but Askar’s AF Kit system is designed to eliminate this concern! With three synchronous belts included, finding a belt that will give you a good connection has been made simple. They didn’t stop there however — as this kit also features a tension adjustment mechanism that will help you find the perfect tension for your system and banish backlash woes!

All-In-One Kit
Trying to find the correct sized belt, hardware, and coupler needed to adapt your electronic focuser to a helical focus system can be a hassle, but with this kit Askar has done all the homework for you! Included in the AF Kit are three differently sized synchronous belts, two sets of electronic focuser screws, an electronic focuser synchronous pulley, and two L-shaped brackets which can be reversed to accommodate a variety of equipment hole patterns. With all these parts, this is the only thing you’ll need to upgrade your SQA55 with the vast majority of bracket-style electronic focusers in use today!