Composite multiwavelength overview image of MACS J1423.8+2404. Blue image: NIKA 150 GHz map showing the tSZ signal. Red image: Chandra photon counts (Obs-ID 04195) tracing the electronic density. White contours: Surface mass distribution model obtained by Zitrin et al. (2011, 2015) on a linear scale. Yellow circles: (Sub-)millimeter sources candidate locations obtained using the NIKA 260 GHz map (solid line) and identified using Herschel (dashed-line). Cyan circle: Location of the radio point sources present in the field as obtained from VLA (LaRoque et al. 2003). Green image: Hubble Space Telescope image using the F814W filter obtained by the CLASH program (Postman et al. 2012) showing the location of the galaxies.