QFocuser incorporates curves into its body design, adding a touch of elegance to its small size.
The QFocuser is exceptionally small!
QFocuser comes in two versions: Standard Version and Precision Version.
The Standard version is designed to be installed on the side of the standard adjustment axis of the telescope focusing mechanism. This is the same with most focusers available in the market. The High precision version is installed on the other side — the precise adjustment axis of the telescope focusing mechanism.
QFocuser (Standard Version)
QFocuser (High Precision Version)
Most electric focusers use a motor and reducing gears and once installed on the telescope manual focusing is not possible. However, the High Precision QFocuser is equipped with a non-reducing motor, allowing it to be manually adjusted even after installation on the telescope, without the need for a power connection or a clutch switch.
Another advantage of QFocuser High Precision Version is that it allows the entire system to achieve almost zero backlash. Backlash calculations involve the entire focusing system, including the focus motor mount, not just the electronic focuser itself. Backlash will exist if there are mechanical gears in the focusing system. Since the High precision QFocuser uses a non-reducing motor (i.e., no mechanical reduction gears) the added backlash from the motor is almost zero. Then, if a good focusing mount is used, the entire focusing system will operate with almost zero backlash. According to our test in NINA, with the backlash set to 0 in the Autofocus settings, the autofocus process runs smoothly.
QFocuser features several holes on its bottom and side, providing a variety of fixing methods. Unlike mounting plates with fixed holes, QFocuser adopts a flexible structure where the fixed holes position and mounting plate height can be freely adjusted to achieve the best compatibility with your telescope.
QFocuser can be powered in two ways: TypeC-5V and 12V DC. Tbe USB 5V power is enough in most cases. Both the standard version and precision version support an external temperature sensor (included) for users who require temperature monitoring.
Additionally, a manual controller will be available as an optional accessory in the near future. This item allows direct operation of the electronic focuser without the need to connect it to a computer or touch the focuser.
Currently, QFocuser supports both Windows (with ASCOM drivers) and Linux systems. In the ASCOM driver, we have integrated basic functions such as move, custom current position, limit switches, torque maintenance, and temperature display, etc. It can also be controlled through other third-party software.
| Version | QFocuser（Standard Version） | QFocuser（High Precision Version） |
| Body Size/mm | About 43*39*50 | About 43*39*50 (excluding the button） |
| Weight | About 210g | About 265g |
| Motor | Reducing motor | Non-reducing motor |
| Backlash | It has some backlash, which can be calibrated in software like NINA | Almost zero backlash* |
| Max. Loads | About 10kg | About 7.5kg |
| Manually Focus After Installing | Not supported | Supported |
| System Supported | Windows （ASCOM）
Linux |
|
| External Temperature Sensor | Supported | |
| Data Interface | USB2.0 Type-C | |
| Power Supply | 5v/12v | |
What’s in the box (Standard Ver)
What’s in the box (High Precision Ver)
| Style | Standard, High Precision |
|---|
Fast Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse personnel will pack each item according to our strict requirements. Before they are shipped, your goods will be thoroughly examined and secured. Everyday, we send to thousands of clients in different countries. This is a sign of our determination to become the largest online retailer globally. The warehouses and centers for distribution are in Europe, as well as the USA.
Note that orders containing more than one item will be processed according to the specific item.
Before shipping before shipping, we'll inspect thoroughly the items you've purchased. Most orders are delivered within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
The inventory is always changing and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. Therefore, the actual inventory could change at any time. It's possible that your order will be unable to fill when you have placed the order.
Our policy is valid for 30 days. If 30 days have gone without a trace since the purchase and we are unable to offer an exchange or refund.
In order for your item to be returned it must be in its original packaging, unopened and in the same condition as when you received it in. It must also be in its original packaging.
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