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The aim of the present work is to study the overall mass distribution of thegalaxy clusters Abell 1351 and Abell 1995 using weak gravitational lensing.These clusters have got a very different mass structure and dynamical state,and are the two extremes from a larger sample of 38 X-ray luminous clusters ofsimilar size and redshift.  We measure shear values of faint background galaxies and correct for PSFanisotropies using the KSB+ method. Two-dimensional mass maps of the clustersare created using a finite-field mass reconstruction algorithm, and verifiedwith aperture mass statistics. The masses inferred from the reconstructions arecompared to those obtained from fitting spherically symmetric SIS- andNFW-models to the tangential shear profiles. We discuss the NFW concentrationparameters in detail.  From the mass reconstructions we infer M200-masses of 11.7 +/- 3.1 * 10^14h_70^-1 Msun and 10.5 +/- 2.7 * 10^14 h_70^-1 Msun for Abell 1351 and Abell1995, respectively. About 3' north-east of the main mass peak of Abell 1351 wedetect a significant secondary peak in the mass reconstruction as well as byaperture mass statistics. This feature is also traced by clusters membersselected by means of their V-I colour, and hence is likely a real sub-structureof Abell 1351. From our fits to the tangential shear we infer masses on theorder of M200 ~ 8-9 * 10^14 h_70^-1 Msun (Abell 1351) and M200 ~ 5-6 * 10^14h_70^-1 Msun (Abell 1995). The concentration parameters remain poorlyconstrained by our weak lensing analysis.

Weak lensing density profiles and mass reconstructions of the galaxy clusters Abell 1351 and Abell 1995