The MM-series of industrial measuring microscopes has been periodically upgraded since the early 1950s, but not to such an extent as during the latest, sixth makeover.

MM-400N and MM-800N series measuring microscopes have aperture diaphragm control on the diascopic illuminator, allowing an operator to adjust the aperture to optimize contrast and resolution. It’s also possible to set the lighting conditions for measuring cylindrical products.
The recently developed diascopic LED illuminator has white and green light sources, allowing the operator to change easily from one color to the other by pressing a switch on the front of the microscope, without having to insert or remove a filter. Furthermore, by integrating the diascopic illuminator into the main body of the measuring microscope, the depth of the instrument has been shortened by 30mm, reducing the installation footprint.

As part of the makeover, Nikon has modernized the appearance of the measuring microscopes, sporting the company’s clean white-and-black exterior. Additionally, power consumption has been reduced by 10% (based on Nikon evaluation values) compared to the former MM-400/MM-800 series models. The manufacturer provides environmentally friendly products and complies with the RoHS Directive and other laws and regulations.
Many component parts are common to new and previous series models, including the measurement stage, objective lenses, and optical accessories for simple, accurate, and highly reproducible measurement applications.
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