2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/9692Non-static gravitational fields generally introduce frequency shifts when bending light. In this paper, I discuss the frequency shifts induced in the bending of light by moving masses. As examples, I treat the recently discovered high-velocity pulsar PSR 2224+65 and a typical Einstein ring.7 pages, LaTexAstrophysicstext