Removing a Locked-In Eyepiece from a Microscope Head

Read the Edited Video Transcript on ‘Removing a Locked-In Eyepiece from a Microscope Head”

Hi, this is Chad with Munday Scientific, and today we’re going to talk about removing the eyepieces from your microscope head. Sometimes this can be a little tricky, so Mike is going to come in and help us demonstrate using a Nikon E200 microscope.

These heads are pretty versatile — they tilt around — but what you’re looking for is the eyepiece itself. We’ve already loosened one of them, but the other is still tight.

If I want to remove this loosened one, it comes out easily. However, this other eyepiece won’t come out yet because it’s still locked in. To fix that, take a 2.5 mm Allen wrench and locate the small hole near the eyepiece. Just insert the wrench, loosen the screw, and then the eyepiece will slide right out.

Similar Process for Most Microscope Models

This process is very similar across many microscope models. Depending on the make and model, you might need a small flathead screwdriver or a different size Allen wrench, but the concept is generally the same.

You can also lock the eyepieces in place, which we actually recommend. There are two main reasons for this: safety and functionality. If the eyepiece isn’t locked in, it may rotate or slip when you try to adjust the diopter tube to focus the eyepiece. When it’s securely locked in, adjusting the diopter becomes much easier and more precise.

Let’s continue with ‘Removing a Locked-In Eyepiece from Microscope Head’.

Another helpful Tip —

Especially for those using Nikon eyepieces — is when you’re trying to locate a small speck of dirt. Sometimes, people suspect the dirt is on the back of the eyepiece. If you need to clean it, we strongly recommend using canned air to blow it out. Do not try to reach in with a Q-tip, especially on Nikon eyepieces. There’s a grease fitting inside, and if you accidentally touch it and smear grease on the glass, it’s very difficult to remove. So again, use canned air, or call a professional microscope technician if you’re unable to remove the debris.

If you have any questions, feel free to email us at .

Also, you can find us at microscopemarketplace.com if you’re interested in purchasing any of these scopes.

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