The OptoSigma range of optomechanics is high quality and well-engineered. You will first notice that OptoSigma devices are heavier in comparison to many competing products. This indicates their robust and stable build, as the materials used are of a better quality. Rather than steel screws in an aluminium thread, OptoSigma use a steel screw in a brass thread. As the coefficient of friction is lower between the screw and thread, the optomechanics are much more smooth and precise when adjusted. The screws are not set into aluminium either – OptoSigma use brass, or in some cases sapphire, for robust and long-lasting optomechanics.