/SBIG AO-X Adaptive Optics / SBIG AO-8A Adaptive Optics /
How SBIG Adaptive Optics works
At the heart of the SBIG-AO units is a movable corrector, usually a plane-parallel glass plate that is tilted ever so slightly by precision motors or piezo actuators. These minute movements – often in the region of a few arcseconds – compensate for:
- atmospheric seeing
- mechanical inaccuracies in the mount
- periodic errors
- Wind or vibrations
- mechanische Ungenauigkeiten der Montierung
- periodische Fehler
- Wind oder Vibrationen
Unlike traditional autoguiders, which only track the mount, the AO operates directly in the optical path and can make corrections at a significantly higher frequency, often up to 10–30 Hz. This results in sharper stars, more stable long-exposure images and, overall, higher image quality.
Benefits for astrophotographers
SBIG’s AO systems are particularly popular with deep-sky photographers who work with long focal lengths. The technology offers:
- extremely fast response times
- minimum delay between the guiding signal and the correction
- Compatible control via SBIG cameras and software
- improved star resolution even in difficult conditions
- minimale Verzögerung zwischen Guiding‑Signal und Korrektur
- kompatible Steuerung über SBIG‑Kameras und Software
- verbesserte Sternabbildung selbst bei schwierigen Bedingungen
The benefits are particularly evident with galaxies, planetary nebulae and small reflection nebulae: finer detail, less distortion and more stable star profiles.
