From left to right, inverted greyscale image of the NIR emission, FIRST greyscale emission with superimposed radio contours, the first two levels of the FIRST contour plots superimposed on the NIR field and likewise superimposed on the SDSS r_AB-band field. The field numbers are the sequential numbers of SDSS macxBCG cluster fields to which the radio sources belong, as they appear in Koester et al. (2007), letters/numbers are the NIR components and lobe designations refer to the radio components. The inlays contain the NIR N component (Tables 3 and 4), coincident with the center of the radio structure. Radio contours are: (top) 0.0004, 0.0008, 0.0016, 0.0032 mJy (in log); (bottom) 0.0005, 0.0010, 0.0020, 0.0040, 0.0080 mJy.