  There is evidence that the photoproduction of single and double pions off
bound nucleons inside a nucleus are not only affected by Fermi motion but also
by other nuclear effects, such as final state interactions or meson
rescattering. We will present preliminary results of a high statistics
measurement of single and double pion photoproduction of quasi-free protons and
neutrons off the deuteron carried out at the Mainzer Microtron.
