Please note: This text was taken directly from the manufacturer.
If you're serious about large format astrophotography, Orion brings you a new way to assure the best tracking performance possible, even in adverse conditions. The SteadyStar LF Adaptive Optics Guider (AO) makes any imaging-capable mount, even if a modest one, perform more effectively. Precise tracking is one of the most critical facets of astrophotography and this tracking is limited to the accuracy of your mount, plus external factors like wind and atmospheric seeing conditions. The SteadyStar LF AO Guider overcomes these limitations and challenges and takes control with super fast and accurate guiding. The SteadyStar LF Adaptive Optics Guider is ideal for use with large format CCD and DSLR sensors with its larger 50mm diameter optical window. The larger window provides full filed illumination to take full advantage of devices equipped with larger sensors, such as 35mm format CCD cameras. Traditional autoguiding involves moving the mount and telescope, along with all of your attached imaging accessories to correct for tracking errors. Furthermore, autoguiding can typically only make a single correction every couple of seconds or so, during that time your tracking is vulnerable to periodic error from your mount, wind, and atmospheric seeing conditions.