3′ × 3′ RGB image (R = K, G = H, B = J) of Mercer 70 (centered at RA = 16^h0^m28.00^s, Dec = −52°10′51.4′′) from the VVV survey, with a 30′′ × 30′′ close-up view of the central region (RA = 16^h0^m27.42^s, Dec = −52°10′51.7′′) taken from a 1.71 μm narrow-band acquisition image of our ISAAC observations. North is up and east is left. All the stars with new spectra are identified, including foreground objects.