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Published online by Cambridge University Press: 12 April 2016
Since 1978 we have been using photon-counting Reticons for spectroscopy at Mt. Hopkins. With these detectors we have accumulated approximately 50,000 exposures, resulting in nearly 10,000 reduced astronomical spectra. This paper describes the performance of the detectors, discusses some of the procedures we use for remote observing, outlines the magnitude of the data-handling problem, and gives a few examples of recent results.