(a) Real and (b) imaginary parts of the transmission function $T^{WDD}\left({\displaystyle \overrightarrow{r}}\right)$ retrieved from the overfocused simulation case, described in Section 2.2 and given $N_{e^{-}}=+\infty$. The result is here visualized in an extended field of view, reflective of the larger reconstruction window. The scanned area is highlighted as well, as a white dotted square. For comparison, the (c) real and (d) imaginary parts of the transmission function recovered in the focused-probe case, as described in Section 2.1 and also given $N_{e^{-}}=+\infty$, are depicted as well.