Restored Hα filtergrams acquired by HiFI instrument at GREGOR telescope showing fine structure of filament at various times on November 9 (top panels) and November 10 (bottom panels). The red and blue contours in the first panels indicate the positive and negative magnetic flux density obtained from SDO/HMI at level equal to ±200 G, respectively. The red box in the second-from-bottom panel represents the GRIS acquired scanned FoV from between 09:17:32 and 09:37:05 UT. Movies of the HiFI data showing the filament in the time interval between 08:44 UT and 11:02 UT (10:49 UT) on November 9 and 10 are available online.