  We present new observations of two z=0.12 strong-lensing elliptical galaxies,
originally discovered from the SDSS-IV MaNGA survey, using the new FOCAS IFU
spectrograph on the Subaru Telescope. For J1436+4943, our observations confirm
the identification of this system as a multiple-image lens, in a cusp
configuration, with Einstein radius $\theta_{Ein}$=2.0 arcsec. For J1701+3722,
the improved data confirm earlier hints of a complex source plane, with
different configurations evident in different emission lines. The new
observations reveal a previously unseen inner counter-image to the [OIII] arc
found from MaNGA, leading to a smaller revised Einstein radius of
$\theta_{Ein}$=1.6 arcsec. The inferred projected masses within the Einstein
apertures (3.7-4.7kpc) are consistent with being dominated by stars with an
initial mass function (IMF) similar to that of the Milky Way, and a dark matter
contribution of ~35 per cent as supported from cosmological simulations. These
results are consistent with `pure lensing' analyses of lower-redshift lenses,
but contrast with claims for heavier IMFs from combined lensing-and-dynamical
studies of more distant early-type galaxies.
