  We study the Einstein images of a charged Rastall AdS black hole (BH) within
the fabric of AdS/CFT correspondence. Considering the holographic setup, we
analyze the amplitude of the total response function for various values of
model parameters. With an increase in parameter $\lambda$ and temperature $T$,
the amplitude of the response function is decreased, while it is increased with
the increase of the electric charge $e$ and chemical potential $\mu$. The
influence of frequency $\omega$ also plays an important role in the bulk field,
as it is found that the decreasing $\omega$ leads to an increase in the periods
of the waves, which means that the amplitude of the response function also
depends on the wave source. The relation between $T$ to the inverse of the
horizon $r_{h}$ for the parameter $\lambda$ is interpreted under fixed values
of other involved parameters. These, in turn, affect the behavior of the
response function and the Einstein ring, which may be used to differentiate the
present work from previous studies. Via a special optical system, we construct
the holographic images of the BH in bulk. The obtained results show that the
Einstein ring always appears with concentric stripes at the position of the
north pole, and this ring transforms into the luminosity-deformed ring or
bright light spot when the distant observer lies away from the north pole.
Moreover, from the brightness profiles, it is observed that as $\lambda$ grows,
the shadow radius is significantly decreased, while the brightness of the ring
is negligibly changed. We further investigate the influence of $T$ and $\mu$ on
the ring radius. These results reveal that the increasing values of $T$ lead to
an increase in the shadow radius and decrease as the values of $\mu$ grow.
Finally, we finish this work with a discussion of the Einstein ring radius
obtained by geometric optics, which is consistent with wave optics.
