Minus K MK52 Series Vibration Control Optical Table with more ergonomic comfort is designed specifically for ultra-low natural frequency applications. The system utilizes Minus K's patented negative stiffness vibration isolators to provide a compact, passive optical table with ultra-low natural frequencies, higher internal structural frequencies, and excellent vertical and horizontal isolation efficiencies. It also does this without any air or electricity! Table top options include Granite, Steel, Composite & Honeycomb.