Since August 2003, the zeropoints of EFOSC2 are measured for the standard
filters UBVRi in each photometric night that EFOSC is mounted.
Photometric standard star fields of different colours are observed at
different airmasses to get a full photometric solution.
For the photometry, the
by Olivier Hainaut is used. The results are stored on the web as
postscript-figure and data-table: