Dependence of the 3D resolution measure for (a) the SIM-SNG, (b) the SEP-SNG, (c) the SIM-MUM, and (d) the SEP-MUM modality on the axial position sz and the orientation angle ω of the imaged point source pair. In (a), (b), (c), and (d), the two point sources are separated by a distance of d = 200 nm. Except for sz and ω which are varied in these plots, all experimental, noise, and other point source pair parameters are as given in Fig. 3.