Contrast limit curves as a function of the distance from the central star HD 34700 A, for the inner system region (see Fig. A.3). The blue shaded area represents the inner ring (partially), while the coloured lines the contrasts for the three IFS broad bands (see plot legend). These were obtained from the IFS flux calibration frames, with no coronagraph. Below 42 mas self-subtraction becomes more significant and thus this range was excluded.