Linear order shear power spectrum (thick solid line; Eq. (12)) and corrections up to . Left. The dashed/short dashed lines show the fourth order corrections to the E/B-mode shear power spectra that arise from relaxing the Born approximation and including lens-lens coupling in the calculation of the shear (Sect. 3.1; cf. Cooray & Hu 2002). The E-mode correction is negative at small l and positive for l ≳ 4200. The dashed-dotted line illustrates term (cf. Eq. (32)) which contributes to the E-mode shear correction, the divergency is cancelled by Eq. (36). Right. The dashed/short dashed lines show the combined forth order corrections to the reduced shear E/B-mode power spectra (Sect. 3.2, Table 1). The dashed-dotted line shows the third order correction to the reduced shear E-mode power spectrum. We assume a source redshift z_α = z_β = 1 and use the transfer function from Efstathiou et al. (1992), the fitting formula of Smith et al. (2003) for the non-linear matter power spectrum, and the fitting formula of Scoccimarro & Couchman (2001) for the non-linear matter bispectrum. This figure assumes a flat ΛCDM cosmology with (Ω_m,Ω_b,σ₈,h,n) = (0.3,0.05,0.9,0.7,1) to enable comparison with previous calculations.