Continuum intensity image (top left) and magnetogram (top right) from July 18, 2011 and the corresponding 50 × 50arcsec insets of the boxed sunspot features near disc centre (middle panels) and limb (bottom panels). The red contours represent the continuum intensity sunspot boundary (the I_C = 0.89 locus). The magnetograms have been saturated at  ± 80G to highlight the extension of the magnetic signal from these sunspots beyond the intensity boundary (see grey scale below the figure).