We report the design and fabrication of a tunable MEMS Fabry-Perot etalon for use in microscale spectroscopic applications. The reflective elements of the interferometer are dielectric mirror stacks optimized for 1500-nm light and the tunability arises via capacitive attraction of a translatablemirror on a spring. The mirror reflectivity was measured to be 97.3%, corresponding to a calculated finesse of 115, while the measured linewidth and FSR are 70 cm(-1) and 334 cm(-1), respectively, corresponding to a measured finesse of 5. [2011-0027]