This listing is for ONE (two available) SBIG ST-7 camera with Guider CCD and telescope control outputs (ST-4 compatible). This camera features the Kodak KAF-0402 (768X512  9 micron pixels) and the TI TC211 Tracking CCD. The interface to a PC is via Parallel Port for a complete 1X1 binned image download of several seconds. The tracking CCD allows for complete control of a telescope with simple North South East West contact closure control. In addition both the Tracking and Imaging CCDs are thermoelectrically cooled and temperature regulated. All software for imaging is available on line.