SPHERE observations of LkHα 330 with a coronagraph of radius of 92.5 mas in J-band (top panels) and H-band (bottom panels). From left to right: Q_∅ image with a power-law normalization using an index of 0.5; Q_∅ × r² in linear scale; and Stokes parameter U_∅ also in linear scale. In all the panels, the color scale is in arbitrary units. The coronograph is shown as a gray circle. North is up and east is left.