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science limiting magnitudes for a detection with ULTRACAM as a function of exposure time on the WHT. Solid (red) curves are for ULTRACAM, with the upper curve representing dark time and the lower curve bright time. Dotted (green) curves are also for ULTRACAM, but using on-chip binning. Dashed (yellow) curves are for a photo-electric photometer.








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