Effect of the spectroscopic T_eff on the [Fe/H] determination. The horizontal axis shows the difference between the spectroscopic value of T_eff and the one computed by TMCalc. The vertical axis shows the difference between the original computation of [Fe/H] and the value computed with the spectroscopic T_eff. The black line represents the zero of the vertical axis, the semi-dashed and the dashed black lines represent the 1σ and 2σ of the Te16 calibration, respectively.