Cross-correlation computed for the different type of lenses. From top to bottom: galaxies (red shades), QSOs (blue shades), WEN clusters (gold shades) and ZOU clusters (magenta shades). The left column shows the comparison between the data obtained using as a background sample the WISE (lighter shade) and H-ATLAS (darker shade) positions, with npix = 400, pixel size 0.5 arcsec, and σ = 2.4 arcsec. In the right column we use the WISE SMG selection for the background sample and it shows the comparison between the case adopting npix = 2000, pixel size 0.05 arcsec, and σ = 0.3 arcsec (lighter shade) and that using npix = 400, pixel size 0.5 arcsec, and σ = 2.4 arcsec (darker shade).