Sky-Watcher SynGuider II: autoguiding without a laptop
The SynGuider II combines a sensitive monochrome CMOS sensor with a built-in guiding computer: it finds a guide star, measures the drift, and corrects your mount via the ST-4 port. Without a laptop, without software installation. For mobile astrophotographers at dark locations, that saves weight, power, and setup time.


The 1.25-inch barrel fits directly into a guidescope such as the Evoguide-50ED. The Aptina sensor with 6-micron pixels and exposures from 0.002 seconds offers enough sensitivity for guide stars in virtually any field.
Features
- Completely standalone: no laptop or PC needed
- ST-4 autoguider port for direct mount control
- Monochrome CMOS-sensor (752 x 480, 6 micron pixels)
- 1.25-inch mount
Compatibility
Suitable for mounts with an ST-4 autoguider port, such as the EQ5 to EQ8 classes and the Star Adventurer line. Combine with a guidescope such as the Evoguide-50ED.
Specifications
| Type | Stand-alone autoguider |
| Sensor | CMOS monochrome (Aptina MT9V034) |
| Resolution | 752 x 480, 6 micron pixels |
| Sensor format | 4.51 x 2.88 mm (diagonal 5.4 mm) |
| Shortest exposure | 0,002 s |
| Connections | 1.25 inch vatting, ST-4 |
The disassembly of Sky-Watcher is a base that will last you for years. Unsure which mount is best for your telescope and your goals? Contact us, we'd be happy to help you decide.





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