  We derive a generic weak lensing equation and apply it for the study of
images produced by tidal charged brane black holes. We discuss the similarities
and point out the differences with respect to the Schwarzschild black hole weak
lensing, to both first and second order accuracy, when either the mass or the
tidal charge dominates. In the case of mass dominated weak lensing, we analyze
the position of the images, the magnification factors and the flux ratio, as
compared to the Schwarzschild lensing. The most striking modification appears
in the flux ratio. When the tidal charge represents the dominating lensing
effect, the number and orientation of the images with respect to the optical
axis resembles the lensing properties of a Schwarzschild geometry, where the
sign associated with the mass is opposite to that for the tidal charge. Finally
it is found that the ratio of the brightness of images as a function of image
separation in the case of tidal charged black holes obeys a power-law relation
significantly different from that for Schwarzschild black holes. This might
provide a means for determining the underlying spacetime structure.
