DR2 spatial resolution comparison for NGC 5406 (ID 684). The upper left panel shows the DR2 image of the Hα map and the upper right the DR1 image. The lower row are Hα images taken with the 4.2 m William Herschel Telescope (Roque de los Muchachos Observatory, La Palma, Spain), using the AUXCAM detector (Sánchez-Menguiano et al., in prep.). The image, with an original resolution of 1.2′′ (bottom left), has been degraded to a resolution of 2.5′′ with the same pixel scale (bottom right) and the FoV has been reduced to match exactly the same WCS coordinates as CALIFA.