Left panel: HST F435W continuum image of NGC 2623, with the average continuum from CALIFA IFS superimposed using red contours. Several regions of the galaxy are labelled. Right panel: spectra from different regions extracted in circular apertures of 2′′ radius, in black the PPaK nuclear spectrum, in red the LArr nuclear spectrum, and in blue the spectrum from the cluster-rich region to the south of the nucleus. The spectra are normalized by the flux at 5500 Å, and an offset is applied to better visualize the differences.