  We report on a calculation of the effects of isospin breaking in Lattice
QCD+QED. This involves using Chiral Perturbation Theory with Electromagnetic
corrections to find the renormalized, non-degenerate, light quark masses. The
calculations are carried out on QCD ensembles generated by the RBC and UKQCD
collaborations using Domain Wall Fermions and the Iwasaki and Iwasaki+DSDR
Gauge Actions with unitary pion masses down to 170 MeV. Non-compact QED is
treated in the quenched approximation. The simulations use a $32^3$ lattice
size with $a^{-1}=2.28(3)$ GeV (Iwasaki) and 1.37(1) (Iwasaki+DSDR). This
builds on previous work from the RBC/UKQCD collaboration with lattice spacing
$a^{-1}=1.78(4)$ GeV.
