  Current matrix elements and observables for electro- and photo-excitation of
baryons from the nucleon are studied in a light-front framework. Relativistic
effects are examined by comparison to a nonrelativistic model and can typically
be of order 20-25%, but can be larger for certain matrix elements, such as
radial transitions conventionally used to describe the Roper resonance. A
systematic study shows that the violation of rotational covariance of the
baryon transition matrix elements stemming from the use of one-body currents is
generally small.
