Narrow-band images (15 Å wide, centred on λ_Lyα(z_QSO)) for our 5 quasars. These images were created from the quasar-subtracted datacubes using the empirical PSF subtraction method. The position of the spaxel used for scaling the PSF image is indicated by a cross; this position corresponds to the centroid of the quasar nucleus. Colours indicate multiples of the standard-deviation per pixel σ_pix, calculated for each image. The values of σ_pix are (2.3, 1.4, 2.7, 2.6, 3.5) ×10^-17 ergs^-1 cm^-2, from top left to bottom right. North is up, and east is to the left. Axes ticks are Δδ and Δα in arcseconds with respect to the quasar centroid.