Meiji's FU3054 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.