SDSS PHOTOMETRIC CAMERA
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  Instrument Overview                                                         
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    The Sloan Digital Sky Survey Photometric Camera is a large-format mosaic  
    CCD consisting of two arrays, a photometric array using 30 2048x2048      
    SITe/Tektronix CCDs with 24 micron pixels and an effective imaging area of
    720 cm^2, and an astrometric array that uses 24 400x2048 CCDs with the    
    same pixel size, allowing the objects imaged in the photometric camera to 
    be tied to bright astrometric standard stars.  The photometric detectors  
    are arrayed in the focal plane in six columns of five chips each such that
    two scans cover a filled stripe 2.5 degrees wide.                         
                                                                              
    For additional information about the camera, see:                         
                                                                              
    Gunn, J.E., M. Carr, C. Rockosi, M. Sekiguchi, K. Berry, and 35 coauthors,
    The Sloan Digital Sky Survey photometric camera, Astron. J. 116,          
    3040-3081, 1998.

References
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Gunn, J.E., M. Carr, C. Rockosi, M.     
        Sekiguchi, K. Berry, and 35 coauthors, The Sloan Digital Sky Survey   
        photometric camera, Astron. J. 116, 3040-3081, 1998.