The telescope's imaging camera is made up of 30 CCD chips, each with a resolution of 2048×2048 pixels, totaling approximately 120 megapixels. The chips are arranged in 5 rows of 6 chips. Each row has a different optical filter with average wavelengths of 355.1, 468.6, 616.5, 748.1 and 893.1 nm, with 95% completeness in typical seeing to magnitudes of 22.0, 22.2, 22.2, 21.3, and 20.5, for "u", "g", "r", "i", "z" respectively. The filters are placed on the camera in the order "r", "i", "u", "z", "g". To reduce noise, the camera is cooled to 190 kelvins (about −80 °C) by liquid nitrogen.