  Low resolution spectroscopy, and UBVRI photometry, have been obtained for the
two EROS microlensing candidates. Radial velocities indicate that both stars
are members of the Large Magellanic Cloud. The spectrum and the colours of
EROS1, the first candidate, reveal that it is a moderately reddened
main-sequence B star with H emission lines. The presence of H absorption lines
seems to be more the signature of a normal star than that of a cataclysmic
variable. As to EROS2, the second candidate, its spectrum and photometry are
those of an unreddened normal main-sequence A star, but it cannot be totally
excluded that they represent those of a nova in the pre-outburst phase.
Although it is not yet possible to exclude intrinsic stellar variations, the
interpretation in terms of microlensing effects remain the most natural one.
