  We discuss several effects due to lensing of ultra high energy cosmic rays by
the regular component of the galactic magnetic field. Large flux magnification
around caustics can be a significant source of clustering in the arrival
directions of UHECRs of comparable energy. We also discuss lensing effects in a
hypothetical galactic magnetic wind model recently proposed to explain the
extremely high energy cosmic rays so far observed as originating from a single
source (M87). This model implies large flux magnifications, which reduce the
power requirements on the source, and a significant asymmetry in the expected
flux between the north and south galactic hemispheres.
