  We address the question as to whether the topology of the normal state Fermi
surface of Bi2212 - as seen in angle resolved photoemission - depends on the
photon energy used to measure it. High resolution photoemission spectra and
Fermi surface maps from pristine and Pb-doped Bi2212 are presented, recorded
using both polarised and unpolarised radiation of differing energies. The data
show clearly that no main band crosses the Fermi surface along the GMZ
direction in reciprocal space, even for a photon energy of 32 eV, thus ruling
out the existence of a G-centred, electron-like Fermi surface in this
archetypal high Tc superconductor. The true topology of the normal state Fermi
surface remains that of hole-like barrels centred at the X,Y points of the
Brillouin zone.
