Overlay of a Euclid H_EY_EI_E colour image of A2390 with the Wiener-filtered E-mode κ reconstruction shown as contours in steps of Δκ = 0.03, starting at κ = 0.03, as derived from the LensMC shape measurements. For illustration the magenta whiskers show the estimated shear field binned on a coarse grid without applying smoothing (a finer grid is used to compute the κ reconstruction; see Appendix C).