Comparison of PACS flux densities and MIPS flux densities: PACS-to-MIPS flux density ratios as a function of PACS flux density at 70 μm (top) and 160 μm (bottom). As a guide to the eye, the unity line is added as a solid line as well as the average uncertainties on the ratio in both bands as dotted lines. These average uncertainties are ~12% and ~16% at 70 and 160 μm. Colours distinguish the selected mapping method.