Best-fit SEDs for F2 using different extinction prescriptions. In black, the preferred primary and secondary models are combined, with final luminosities of log = 5.648 and 5.508 respectively, and are reddened with α = 2.288 and A_ks = 2.527. The blue line uses luminosities of log = 6.445 and 6.305, and reddening follows Moneti’s law with A_ks = 4.518. Filter curves for the filters used for the fit are shown in green (broad-band) and pink (narrow-band), and symbols are plotted for each magnitude measurement to show the goodness of fit: yellow diamonds for the α-model and pink stars for the Moneti model. (The filter curve for F190N is not shown as it was not used for fitting, although it matches the curves very well.) The x-axis position of each symbol corresponds to the classical λ₀ of the filter at which the zero-point flux is defined. The y-axis position coincides with its corresponding model curve if the observed magnitude matches the magnitude of the reddened model.