Temporal evolution of Ellerman features at 1-s cadence in Hα wide-band (FWHM = 4.9 Å) image sequences. Each row of image cutouts shows selected samples with identical greyscaling per panel. The limb direction is upward. Row a) contains an active-region EB from dataset 2 (close to the limb, cutout C in Fig. 1). The other rows show QSEBs in quiet areas in yet smaller cutouts from datasets 5 b), close to the limb and 4 c) and d), μ = 0.56. The time labels specify duration from the start of each observation. Corresponding animations of this figure are available online.