Both TI and RCA CCDs have been applied to two-dimensional photometry and spectroscopy at Palomar. The optical, mechanical, and electronic properties of these chips are described along with a discussion of drive, processing, and recording techniques. A focal conversion optical system, the "Prime Focus Universal Extra-galactic Instrument" (PFUEI) is used to more optimally match the Hale 5 meter plate scale. Calibration and data analysis are discussed with illustrations of results.