Askar FRA500 90mm f/5.6 Quintuplet Astrograph with ZWO EAF – Used Excellent Condition
The Askar FRA500 is a premium 90mm Petzval astrograph designed to deliver pinpoint stars across the entire field without requiring a separate field flattener. With its 500mm focal length and fast f/5.6 focal ratio, it's an excellent choice for capturing nebulae, galaxies, star clusters, and wide-field deep-sky targets.
This telescope comes equipped with a ZWO Electronic Automatic Focuser (EAF), allowing for precise motorized focusing and seamless integration with ASIAIR and most popular imaging software.
Features:
- 90mm aperture
- 500mm focal length
- f/5.6 focal ratio
- Quintuplet Petzval optical design
- Built-in flat field – no flattener required
- Large image circle suitable for full-frame cameras
- Precision dual-speed focuser
- Rotating focuser for easy framing
- Includes installed ZWO EAF electronic focuser
- CNC-machined aluminum construction
Included:
- Askar FRA500 OTA
- ZWO EAF motor and bracket
- Tube rings
- Dovetail plate
- Retractable dew shield
- Original carrying case
Condition:
Excellent condition with clean optics and smooth focuser operation. The EAF is installed and ready for automated focusing, making this a turnkey imaging setup for ASIAIR, NINA, Voyager, and other astrophotography platforms.
The FRA500 has earned a strong reputation among astrophotographers for its sharp optics, flat field, and ease of use. Combined with the ZWO EAF, this package is ready to produce stunning deep-sky images with minimal setup.
