The BVR light curves of V505 Lac obtained at SOAO. The circles, triangles, and squares represent the B, V, and R observations, respectively. In the upper panel, the solid lines depict synthetic curves obtained using the 2015 version of the WD binary star modeling code. The residuals of the BVR observations from the binary models are shown in the bottom panel, where the data for the B and R bandpasses are shifted by −0.05 and +0.05 mag, respectively.