Retrolensing by two photon spheres of a black-bounce spacetime

We investigate retrolensing by two photon spheres in a novel black-bounce spacetime suggested Lobo et al. which can correspond to Schwarzschild black hole, regular and traversable wormhole including an Ellis-Bronnikov wormhole. In case, the has throat acts as sphere it another outside of throat. With sun light source, observer, are lined up this order, sunlight reflected slightly barely inside outer reach observer. show that rays dominant curves case.