Stuck Eyepiece? Here’s How to Safely Remove It Without Damaging Your Microscope
It happens more often than you'd think—a microscope eyepiece that just won’t budge. Whether you're a pathologist, a veterinary tech, or a teacher using a classroom scope, a stuck eyepiece can be a frustrating hiccup in your workflow. Fortunately, there's usually a simple solution.
In this quick tutorial, Chad Potts from Munday Scientific and Microscope Marketplace walks you through how to safely remove an eyepiece that’s locked into the microscope head.
Why Are Eyepieces Locked In?
Microscopes are precision tools, and the eyepieces often have a locking screw (or diopter ring) to prevent accidental adjustments. Locking the eyepiece helps keep your diopter settings consistent—especially useful when multiple people use the same scope or during long days of imaging.
But if you need to remove the eyepiece—for cleaning, replacing, or upgrading—it’s important to do it right to avoid damaging your optics or scratching components.
Chad’s Pro Tips for Eyepiece Removal:
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Look for a tiny locking screw—usually located on the side of the eyepiece tube.
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Use a precision screwdriver to gently loosen the screw—don’t remove it completely unless necessary.
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Once unlocked, gently twist and lift the eyepiece out. Avoid using force!
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If it’s still stuck, don’t pry or yank—doing so could damage the optics or misalign the tube.
🎥 Watch the full tutorial here to see Chad’s method in action:
Watch on YouTube
Bonus Tips for Microscope Care:
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Always check for locking screws before trying to remove components.
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Keep a set of small tools in your lab or clinic for minor adjustments.
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Store eyepieces in dust-free containers when not in use.
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When in doubt, call an expert—it's better than risking permanent damage.
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