Introduction to MIOSOTYS: a multiple-object, high-speed photometer

MIOSOTYS is a multiple-object, high-speed photometer. It is currently operating on the 1.93m telescope at Observatoire de Haute-Provence (OHP), France. The instrument consists of a multi-fibre positioner which can access maximum 29 targets simultaneously, and an EMCCD camera which is capable of recording low-level light at high frame rate. This paper will describes the instrument's specifications as well as the performance, i.e., signal-to-noise ratio, under the current configuration (ProEM CCD + 1.93m telescope).