• aox-new
  • AO-X

    SKU: AO-X


    The next-generation of adaptive optics for our STX/STXL-series cameras.

Product Description

The SBIG AO-X is a large aperture AO designed to be compatible with all STX and STXL series cameras, including the STX-16803, STXL-16200, STXL-11000 and STXL-6303.  The AO-X requies minimal backfocus while offering a large 3″ aperture optical element, which is large enough to cover the KAF-16803 CCD sensor.

The AO-X requires an off-axis guide camera behind the device.  For STXL cameras, we recommend using the FW8G-STXL filter wheel.  For STX cameras, the AO-X stacks on top of the FW7-STX and STX Guider.  The AO-X can also be used with a Remote Guide Head if you have a custom Off-Axis Guider setup.

AO Results

The images below are actual star images showing the effect of image wander corrected at 1 Hz and 10 Hz:

  • ao_mov_1hz1 Hz Corrections
  • ao_mov_10hz 10 Hz Corrections

And the resulting size of the star image in a long exposure:

  • aox-1hz-corrected
    1 Hz Corrections
  • aox-10hz-corrected
    10 Hz Corrections

Other data gathered by Brad Wallis of JPL (Brad Wallis and Benoit Schillings developed the prototype for the original AO-7) show the the effect of rapid corrections on poor seeing.  At 1 Hz the larger, slower component is reduced, but the amplitude of the jitter remains about the same:


However, at a 5Hz correction rate, the faster jitter is reduced:


And at a 10 Hz correction rate, significant improvement is seen:


The improvement in stellar profiles can also be seen at corrections above 1 Hz.  First by looking at the non-AO guided image:


And comparing the non-AO guided image to the AO guided image there is again significant improvement in the FWHM of the star profile:


Telescope mounts cannot correct faster than about once per second.  The 10Hz rate of the AO-X will clearly result in improved resolution under the right conditions.

Additional Information

Computer Interface



6 x 7 x 1.2 in.

OS Compatibility

Windows 32 and 64 bit OS, Mac


Supplied through Camera’s I2C Port


2.2 lbs (1 kg)

Specification Sheet

Technical specifications for the AO-X.


User’s Manual

Installation and operation instructions for your AO-X adaptive optics unit.