Top left: fractional difference between T_PB, 3 and T_PB, 3^∞ for the convergence maps and the shear catalogues with shape noise. Top right: fractional difference between T_P5, 1h and T_P5^∞ for the convergence maps and the shear catalogues. T_P5^∞ does not include the two-halo term T_P5, 2h as it is a finite-field term and therefore zero in the large-field approximation (Appendix A). Bottom left: relative contribution of the two-halo term T_P5, 2h to the total T_P5. The blue line for the shear catalogues and the orange line for the convergence maps of the SLICS. Bottom right: fractional difference between the analytical cross-covariance and its large-field approximation plus the two-halo term T_P5, 2h for both datasets.