The new Olympus STM6 range of industrial measurement and inspection microscopes has been designed to perform the most demanding measuring and inspection tasks of industrial parts and electrical components. Both the STM6-LM and STM6 models offer outstanding features with motorised focusing a world first, highly advanced UIS2 (Universal Infinity System) infinity-corrected optics, and a high-rigid body with integrated counters. Motorised focusing has been introduced to the STM6 series for quick and precise Z-axis measurement. This dramatically improves operation in both focusing and the measurement of height and depth, and is equipped as a standard feature. The Z-axis control box, which is conveniently located by the operators hand, allows both coarse and fine focusing movements to be carried out. In addition, the auto focusing unit makes it possible to obtain stable measurement results by minimising the dispersion caused by different operators.