Final reduced 4.5 μm images of the innermost region in the Fomalhaut system. Left: the actual image, with no candidates present. Right: an image in which an artificial companion has been inserted at the expected location of Fomalhaut b prior to the high-contrast reduction, illustrating that companions are well preserved in the procedure, with little flux loss. The artificial companion in this example corresponds to a planet of mass 1.6–1.8 M_jup at 400–500 Myr using COND models.