  ModMax is a nonlinear electrodynamics theory with the same symmetries as
Maxwell electrodynamics. Static spherically symmetric solutions have been
derived by coupling ModMax electrodynamics with the Einstein equations, which
can represent a black hole. In this paper, we analyze light propagation in the
vicinity of the ModMax black hole. We determine birefringence, light
trajectories, deflection, redshifts, as well as the shadow of the black hole
using the effective or optical metric to determine the optical paths of light;
comparison is done with the corresponding effects in the neighborhood of the
Reissner-Nordstrom black hole, that is the solution to the Einstein-Maxwell
equations.
