Lensing mass – X-ray luminosity relation. The M–L_X relation is shown, for both (filled circles) and (small triangles). Open triangles represent the sample clusters for which MMT lensing masses are not available. The V09a M–L_X relation at z = 0.40 (z = 0.80) is denoted by a long-dashed black (short-dashed red) line. Shaded (hatched) areas show the respective 1σ intrinsic scatter ranges.