Differential I magnitudes of EE Cep during and around of eclipses at epochs E = 8, 9, 10, and 11. The zero value represents average brightness outside eclipses (phase 0.4−0.8). The yellow triangles show the AAVSO I-band light curve after correcting for the differences between photometric systems of particular observers. The magnitudes of epoch E = 11 (black points) are the same as in Fig. 4 for the I band.