Pointings of the INT, CFHT and ESO imaging data sets together with the filters used, and the three EMMI spectroscopic fields. The position of MACS J2243, the supercluster centre, is indicated by the black dot. It was unknown by the time the quasi-simultaneous CFHT and INT observations were performed. The layout of the 4 CCDs in the WFC/INT detector array is indicated for the upper right pointing. The area above the dash-dotted line is covered by SDSS-DR7.