A micro-objective positioning system designed for adjusting microscope objectives has been announced by piezosystem jena GmbH. The MIPOS 4 offers maximum motion in the Z-axis of 330 µm in an open-loop configuration and 265 µm of motion in closed-loop operation. It can be used with an optional capacitive measurement system to provide high resolution that is limited only by the voltage noise of the power supply and the amplifier. The company says the integrated preloaded design allows small angular deviation, a high degree of parallelism and high resonant frequency. The stainless steel system has several optional threads for various applications.