  Most gravitational lens galaxies are early-type galaxies in relatively low
density environments. We show that they lie on the same fundamental plane as
early-type galaxies in both local and distant rich clusters. Their surface
brightness evolution requires a typical star formation epoch of z=2-3, almost
indistinguishable from that of rich cluster galaxies at comparable redshifts.
The restricted galaxy type range of the lenses means that photometric redshifts
work well even with only 1-3 filter photometry. We make preliminary
measurements of the mass and luminosity functions of the lens galaxies, and
find they are consistent with the standard model used for deriving cosmological
limits using lens statistics. As expected for a mass-weighted sample, they are
more massive and more luminous than the overall early-type galaxy population.
