Left columns: Megacam R and I filter and VIDEO H filter images for the two candidate clusters along the same line-of-sight. Definitions of symbols and contours are given in Fig. B.1. Middle columns: background subtracted and Gaussian filtered redshift distribution of the bright galaxies within the central arcmin for the corresponding candidates. Bottom columns: i − z (0.8 ≤ z <  1.2) or z − J (z ≥ 1.2) CMD plot of the galaxies above the VIDEO 5σ limit within 1 arcmin of the centre.