Left: GMRT 325 MHz image of Abell 1612. Radio contours are drawn at levels of  [1,2,4,...]   ×  4σ_rms. Dashed contours are drawn at −3σ_rms. Right: A1612 X-ray emission from ROSAT, tracing the thermal ICM, is shown by the color image. The original image from the ROSAT All Sky Survey was convolved with a 270″ FWHM Gaussian. Solid contours are from the GMRT 325 MHz image and drawn at levels of  [1,2,4,...]     ×    3σ_rms. Dashed contours show the galaxy iso-density distribution derived from the SDSS survey. Contours are drawn at  [1.0,1.4,1.8,...]  × 1.1 galaxies arcmin^-2 selecting only galaxies with 0.16 < z_phot < 0.20.