Electronics > Beginners

Issues with my first microscope

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Kfire778:
When doing the parfocial adjustment, I dial everything in using just one eye, and when I have a clear image in it, make the diopter adjustments to the second eye piece, but that is when my issues start.

jfiresto:
For a user with corrected vision, the microscope should be parfocal (stay in focus as you zoom in and out) when the eyepiece diopter adjustments are set to 0. That way, he can add a reticle to an eyepiece and expect the reticle to be in focus. There are a few possibilities if the microscope is not:

* its maker does not care about reticles
* they sent you eyepieces meant for a different microscope (perhaps they were a bargain in the market that day) or
* the microscope is defective.Do you get the same split images at both minimum and maximum zoom, or does the splitting vary with the zoom? If it does, how so?

grizewald:
Looking at the picture on Aliexpress, this microscope seems to be very similar to the one I have.

I have had no problem at all getting mine set up and parfocal. I only wear glasses for close up vision and I don't wear my glasses when using the microscope. I just use the microscope's diopter adjustment to compensate for my middle aged eyes.

Do you wear glasses? If so, for what kind of defect? I don't have practical experience of using a microscope if you are near-sighted, so I can't really say if that would be a problem.

Kfire778:
I don't wear glasses, but in normal life I do have issues with double vision from time to time.  Using normal binoculars no problem, before adjusting the diopter for each eye, when there at the same 0 on the diopter I can see one image fine, blurry and out of focus but one single image, but once I do the parfocial adjustment I can no longer find center thus I can't get 1 image from the microscope it becomes 2 images overlapping.

grizewald:
Kfire778 sent me these two images to post for him here.




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