IMFs derived for Collinder 69 taking into account three different determination of mass for each member and the two different areas within the cluster. Left panels: area confined within the intersection of the XMM, CFHT, and IRAC fields of view. Top: IMF (I). Masses derived combining the estimated T_eff and the composite 5 Myr isochrone (SIESS + COND). Middle: IMF (II). Masses derived combining the estimated L_bol and the composite 5 Myr isochrone (SIESS + COND). Bottom: IMF (III). Masses derived averaging the masses from the previous two figures. Right panels: area confined within the CFHT field of view (including the central part of the cluster). Top: IMF (IV). Same method to estimate masses as in IMF (I). Middle: IMF(V). Same method to estimate masses as in IMF (II). Bottom: IMF (VI). Same method to estimate masses as in IMF (III).