DirectSync
SV35 with FocusLynx
Direct Drive Focus Motor for the Stellarvue 3.5-inch Focusers
The FocusLynx DirectSync SV system is an aftermarket add-on for the Stellarvue SVF35 3.5-inch Focusers and is used with the FocusLynx focus controller. The DirectSync SV35 motor provides a direct drive motor that can be easily disengaged for manual focusing.
For a detailed explanation of the FocusLynx System, please download and read the FocusLynx FT Whitepaper.
DirectSync SV35 Motor for the Stellarvue SVF35 focuser
The
FocusLynx DirectSync SV35 motor was designed especially for the
Stellarvue large 3.5-inch
native focusers and offers greater positional repeatability than the
original QuickSync SV package. With a direct gearing system that
leaves the planetary reduction assembly and unique tensioning system intact, DirectSync
SV35 can achieve
greater positional repeatability and carry imaging camera packages in
excess of 5 kg (11-lbs).
Coupled with the FocusLynx controller, DirectSync SV35 can be used in both manual and automatic focusing modes. Fully ASCOM compliant, FocusLynx Commander software works in conjunction with higher level client software such as FocusMax and Maxim D/L as well as CCDSoft and TheSky X to provide auto-focusing for a wide variety of manual focusers.
Compatible with:
- Stellarvue SVF35 3.5" focuser,
- Stellarvue FSV-35 3.5" focuser,
- Many Stellarvue model telescopes including:
- SVX130T
- SVX140T
- SVX152T
- Also fits many Astrotech telescopes with large 3-1/2 focusers
including:
- AT130EDT
- AT152EDT
- Fits Teleskop-Service telescopes with large 3.5-inch focusers
including:
- TS APO130Q f/5 sextuplet APO
Specifications:
DirectSync SV35 Motor (#19780)

- Motor Housing Width: 1.9" (48mm)
- Overall Length: 3.35" (85mm)
- Weight: 5.2 oz (150 g)
- Step Resolution: 1.4 micron per step
- Stepper Motor: Bi-polar NPM 15-ohm with 1:25 gearhead
- Connection to FocusLynx: Standard Ethernet cable (included)
- Temperature Probe: Integrated Digital Sensor type TMP04FT9Z
- Current Draw: Maximum draw approx. 350mA
FocusLynx Controller (#19690)
- Length: 5.1" (130mm)
- Width: 3.2" (81mm)
- Height: 1.0" (27mm)
- Weight: 9.8 oz (280 g)
- Connectivity: USB/Serial, Ethernet, and WiFi
- Hand Control: Optional
- WiFi Connection: Optional
- Second Stepper: Optional
- Input Power: 12VDC universal power supply (110 to 230VAC input)
- Software Drivers: ASCOM local server, X2 native drivers for TheSky X
How to Order:
Contact any Optec dealer, call Toll-Free 1-888-488-0381, email, or visit our ecommerce site: optecinc.us.
The DirectSync SV includes the #19780 DirectSync SV motor only for owners of the FocusLynx Control Hub. Other options may be ordered separately.
Also Available with Integrated ThirdLynx Controller
Visit our new website for the DirectSync SVX35 motor with integrated ThirdLynx control circuit. Fully compatible with all FocusLynx software drivers.
Additional Details and Resources:
Click
here
for the
DirectSync
SV Installation instructions.