The vibration-damping Ultimate Performer 5300 Series Optical Table from Kinetic Systems (Boston, MA) has Maximum Dynamic Deflection Coefficients of ≤0.3 (10)-3 and an IRD-Maximum Relative Motion of 0.8 (10)-9 inches. The 5300 Series features a broadband damping plus quad-tuned dampers in each corner. Flatness is ±0.005" overall and core shear modulus is 225,000 psi. The 5300 Series is available in sizes up to 6' × 20' and in thicknesses up to 36". Standard tabletops have a ferromagnetic stainless steel top skin and a proprietary epoxy-bonded honeycomb core that features the SPILL-PRUFTM design.