  We revise the conventional nuclear effects of Fermi motion, binding and
pionic effects in deep inelastic lepton scattering using a relativistic
formalism for an interacting Fermi sea and the local density approximation to
translate results from nuclear matter to finite nuclei. In addition we also
consider effects from rho-meson renormalization in the nucleus. The use of
nucleon Green's functions in terms of their spectral functions offers a precise
way to account for Fermi motion and binding. On the other hand the use of many
body Feynman diagrams in a relativistic framework allows one to avoid using
prescriptions given in the past to introduce relativistic corrections in a non
relativistic formalism. We show that with realistic nucleon spectral functions
and meson nucleus selfenergies one can get a reasonable description of the EMC
effect for x > 0.15, outside the shadowing region.
