Herschel/PACS images of HD 207129 at (top to bottom) 70, 100, and 160 μm. Columns a) and b) show the observed and star-subtracted images, respectively. Columns c) to f) show deconvolved images using the following methods: c) van Cittert, d) FFT with a Wiener filter, e) MCS code, f) Richardson-Lucy. Flux steps (in mJy/arcsec²) between solid isolines are indicated in the top-right corner of each panel. The photocentre of the disk, i.e. the assumed stellar position, is indicated by a cross. In every panel, North is up and East is left.