Sensitivity limits (C_sens) of KOI-0082 in the four main high-resolution imaging surveys in the Kepler sample, namely Howell et al. (2011), red solid line; Adams et al. (2012), blue solid line; Law et al. (2013), green solid line; and this work, LB14, black solid line. The horizontal grey dotted lines show the maximum magnitude difference that a companion should have to mimic the transit of every planet candidate in that system (see Eq. (2) and Sect. 4.1.1)