Top: g-band light curves of various fast transients; SN 2019bkc and the Ca-rich SNe 2010et, 2012hn, iPTF14gqr, and iPTF16hgs. The red line is the ELDD-L model from Sim et al. (2012). The inset shows the g band light curve with an estimated upper limit of 19.5 mag (green star) derived from the ATLAS-o band magnitude of 19.8 assuming the SED is a black body at ∼20 000 K. Middle: r or R band light curves including SNe Ic 2005ek and 1994I, and the unusual transients SNe 2010X and 2002bj. Bottom: i or I band comparison with the addition of the Ti-dominated transient OGLE-2013-SN-079. The initial ATLAS-o non-detection is treated as if it was in r and i respectively.