  Energy levels and electromagnetic properties of with $N=28\sim 30$ nuclides
are studied in terms of a large-scale shell model calculation, which contains
no newly adjusted parameters. The Kuo-Brown $G$-matrix interaction is shown to
reproduce energy levels of 205 low-lying states of these nuclei. We evaluate
effective charges by incorporating the core-polarization effects caused by the
coupling to GQR's. We then compute E2 moments and transition probabilities. The
M1 moments and transition rates are calculated by quoting the effective
$g$-factors of Towner, which are obtained by taking into account the
meson-exchange and the core-polarization mechanisms. By this microscopic
calculation most of the E2 properties and the magnetic moments are reproduced.
Although there are agreements and disagreements in the M1 transition rates, the
general tendency is reproduced. The $(e,e')$ and $(p,p')$ excitation from the
ground state to some low-lying $2^+$ states is also discussed.
