Meiji's FU3050 Focus Block offers the foundation for your own custom modular microscope system. It accepts DIN standard objectives or Meiji's Infinity corrected brightfield darkfield metallurgical objectives, along with Epi illumination and binocular or trinocular bodies. It also includes a Z-axis mounting kit for the optional Z-axis Mitutoyo Digital Micrometer. Coarse/fine focus controls move the quadruple nose piece through 40mm of vertical travel adjustment. Holder and bracket for an optional Z-axis micrometer are included.