Tomographic weak-lensing shear spectra from large N-body and hydrodynamical simulations L. Casarini, S. A. Bonometto, S. Borgani, K. Dolag, G. Murante, M. Mezzetti, L. Tornatore and G. La Vacca A&A, 542 (2012) A126 Published online: 18 June 2012 DOI: 10.1051/0004-6361/201118617