Figure 1: Plots of the 1D extractions of the reduced, wavelength-calibrated spectra of the standard star LTT 3218, observed with B480 and B600 on the same night.

Figure 1: Plots of the 1D extractions of the reduced, wavelength-calibrated spectra of the standard star LTT 3218, observed with B480 and B600 on the same night. Exposure time was the same for each grating. B480 throughput in e-/pix is higher than B600 over the full wavelength range (the straight line between 625 and 651 nanometers is the interpolation across the GMOS-S CCD faulty amplifier#5 gap)