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science limiting magnitudes for a detection with ULTRACAM as a function of exposure time on the WHT
science solid curves are for ULTRACAM, with the upper curve representing dark time and the lower curve bright time
science dotted curves are also for ULTRACAM, but using on-chip binning
science dashed curves are for a photo-electric photometer





science limiting magnitudes for a detection with ULTRACAM as a function of exposure time on 2 m (blue curve), 4 m (green curve) and 8 m (red curve) telescopes