Optika's STX Binocular stereomicroscope offers a complete range of stereo microscopes, which can meet all the needs in teaching and amateur fields. From a small MS-2 to ST-50 all the devices consist of a metal tripod and carefully assembled. The optical system is due to its top quality in its category. The head of this microscope is fixed-vertical and the eyepiece measures WF 10x/16 mm. It has a pillar stand with fixed holder and has a LED incident light with slot for 2 AA batteries.