How to Setup & Focus a Stereo Microscope

Quickly and easily setup and focus your stereo microscope.

  • Turn on the illumination – adjust the light source so that it illuminates
  • Set the diopter setting(s) to zero



  • With the eyes about 0.5″ away from the eyepieces from the eyepieces, adjust the distance between the eyepieces (interpupillary distance) until you see a single image
  • Adjust the illumination brightness to the desired levels
  • Zoom up to the highest magnification
  • Closing the right eye (or the same eyepiece as the diopter adjustment), adjust the focus until you get a sharp image
  • Closing the left eye, adjust the eyepiece diopter until you obtain a sharp image (Make a note of your diopter setting for future convenience)
  • Note: Diopter adjustment is performed on just one of the eyepieces
  • Your stereo microscope is now correctly focused. Your sample will now be in focus throughout the zoom range


© Vision Engineering.

This entry was posted in Microscopes & Magnifiers and tagged , by Melissa. Bookmark the permalink.

About Melissa

Since 1973, Production Automation Corporation (PAC) has focused on selling, stocking, and supporting technical products that solve manufacturing problems. We offer a very broad selection of the most recognized brands in the industry, alongside promising new suppliers we have carefully selected. Today, we deliver the best and most cost effective products and solutions available for electronic assembly, medical device manufacturing, and general industrial manufacturing. PAC is both a full-service stocking distributor and a manufacturer's representative.

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