AR 12158 associated with CME1 eruption in different wavelengths. (a) AIA 131 Å image highlighting the evolved sigmoid and the hooks corresponding to flux rope footpoints during the early phase of the flare. (b) HMI magnetogram saturated at ±200 G overlaid with the approximated PIL orientation (i.e. the part of the extended PIL that most likely erupted as CME1), before the start of the flare. (c) AIA 304 Å image showing the inverse J-shaped flare ribbons after the eruption, which suggest the eruption of a left-handed flux rope. (d) AIA 211 Å image showing the post-flare coronal dimmings (marked with white arrows). The X- and Y-axes correspond to the helio-projective longitude and latitude, respectively.