{it Effect of peculiar motion in weak lensing:} I will present the effect of peculiar motion in weak gravitational lensing. More precisely, I will show that the cosmic shear and the convergence, evaluated in a perturbed Friedmann Universe, contain a new contribution related to galaxies’ peculiar velocities. This contribution does not affect cosmic shear in a measurable way, since it is of second order in the velocity. However, its effect on the convergence is important, especially for redshifts $z

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