Photographic element containing a macrocyclic ether compound

A photographic element comprising a radiation sensitive silver halide emulsion layer and a macrocyclic ether compound wherein the ring structure comprises more than 12 but less than 30 total ring atoms, which ring atoms comprise (a) more than 2 and less than 10 oxygen atoms and at least one of (b) from 1 to 4 selenium atoms and (c) 1 or 2 sulfur atoms, with the proviso that when the macrocyclic ring contains no selenium atoms the sulfur atoms present in the ring are separated one from another by a divalent alkylene chain comprising less than 6 carbon atoms.