NEW GEMINI EAF Automatic Star Focuser Pro – the ultimate electric auto‑focusing solution for deep‑space astronomers and astrophotographers. Designed to work seamlessly with Ascom/Indi‑compatible telescopes, this focuser delivers precise, repeatable focus in seconds, freeing your time to capture stunning celestial images.
Product Overview
The EAF Pro is engineered for high‑performance astrophotography. Its lightweight, compact design fits most telescope mounts, while a robust motor and high‑resolution encoder guarantee sub‑micron focus accuracy. Whether you’re a seasoned professional or a passionate hobbyist, the EAF Pro brings professional‑grade focusing to your setup.
Key Highlights
- Fast, accurate electric auto‑focusing with ±0.5 µm precision
- Seamless integration with Ascom and Indi software platforms
- Compact, lightweight construction – 280 g total weight
- High‑temperature rated motor for stable performance in extreme conditions
- Built‑in temperature compensation to counteract focus drift
- Easy-to-use USB and serial interfaces for quick setup
- Durable, weather‑sealed housing for outdoor use
- Full firmware support for future updates and custom scripts
Technical Specifications
Motor: 12 V DC, 0.5 mm step size
Encoder: 4096 counts per revolution
Operating Temperature: –10 °C to +40 °C
Power Consumption: < 1 W
Dimensions: 120 mm × 60 mm × 45 mm
Weight: 280 g
Connection: USB, RS‑232, TTL
Compatibility: Any telescope focuser with 0.5 mm step, 1/4‑inch screw
Why Choose EAF Pro?
With the EAF Pro, you eliminate the tedious manual focusing process, ensuring consistent focus across long exposures and reducing image blur caused by temperature changes. The intuitive software interface allows you to set focus ranges, create focus curves, and automate repeatable focusing sequences, making it ideal for deep‑space imaging sessions.
Compatibility & Installation
The EAF Pro is designed for Ascom and Indi compatible mounts and focuser systems. Installation is straightforward: attach the focuser to your telescope, connect the USB or serial port to your control computer, and load the provided firmware. Refer to the quick‑start guide for detailed instructions.
Customer Support
We provide 24/7 technical support, a comprehensive user manual, and firmware updates. Join our community forum to share tips, ask questions, and showcase your deep‑space photos.
Price: Original price was: $ 74.98.$ 62.98Current price is: $ 62.98.

