  The proton structure function F_2(x,Q^2) is measured in inelastic QED Compton
scattering using data collected with the H1 detector at HERA. QED Compton
events are used to access the kinematic range of very low virtualities of the
exchanged photon, Q^2, down to 0.5 GeV^2, and Bjorken x up to \sim 0.06, a
region which has not been covered previously by inclusive measurements at HERA.
The results are in agreement with the measurements from fixed target
lepton-nucleon scattering experiments.
