Two 15 × 15 arcmin2 quotient images of very large MASH-II PNe enhanced to show faint structure. BMP1808-1406 (left-hand side) exhibits elliptical geometry with opposing enhancements. BMP0733-3108 (right-hand side) shows bipolar morphology complete with faint outer lobes on both the sides of an elliptical centre. Positions of blue central star candidates are marked.