Mass and redshift distributions of the gravitational lenses that produce the largest and the twelfth-largest Einstein radius. The distributions were extracted from 2000 mock realisations of Einstein radii in the redshift interval 0.5 ≤ z ≤ 1.0 on the full sky. The calculations incorporated the impact of cluster mergers. The plotted mass denotes the total mass of all haloes enclosed by the corresponding tangential critical curves.