Color−magnitude diagram in the MKO system showing the brown dwarf sample from Dupuy & Liu (2012) (except M-type brown dwarfs), our targets and the BT Settl-models (Allard et al. 2012). The objects in the Dupuy & Liu (2012) sample with spectral type between L2.5-L9 are shown in red; the objects with spectral types between L9.5 and T4 are shown in green; and the objects with spectral type >T4 are shown in light blue. Our targets, which are listed in Table 1, are shown in black. We overplot the evolutionary models from Allard et al. (2012) in MKO photometry for different ages from 100 Myr to 5000 Myr.