Vertical-axis surface-brightness profiles that illustrate effects of radial truncation of PSF_K71 and PSF_V,0m in example models. The three panels show: a) a small edge-on galaxy, b) an edge-on galaxy of intermediate size, and c) a large edge-on galaxy. In each panel, the disc-galaxy model profile is drawn with a thick solid black line, and model profiles that were convolved with PSF_V,0m (PSF_K71) are drawn with thin black (grey) lines. The profile of the model that is convolved with the complete PSF is drawn with a thin solid line. Profiles are also shown where each PSF was truncated at r_tr,1 (r_tr,2) with a dotted line (dash-dotted line) in each panel; a) r_tr,1 = 4″ and r_tr,2 = 10″; b) r_tr,1 = 10″ and r_tr,2 = 25″; c) r_tr,1 = 10″ (lines fall on top of the model line and are not visible) and r_tr,2 = 250″ (Table 3).