how do u determine if a blurred spot on a microscope is on the ocular or on the slide mount?

Answer 1

Move the slide a little bit. If the blur moves with it, then it is on the slide. If not, it is on the microscope.

If it turns out the problem is on the microscope, the try switching magnifications. Since that generally changes the aperture lens, then you look again to see fit he blur is still there. If not then it was on the aperture lens. If it is still there, then it is on the eyepiece.

You will find the same problem if you look for galaxies or nebulae through a telescope. Is that little blur a galaxy or just fog on the telescope? If you jiggle the scope a small bit and the blur moves with the stars, the it is something is space, but if it moves against the stars, then it is something on the telescope.

Answer 2

yes, move it. you sure would be able to rotate (like if you wanted to unscrew) the ocular a little bit, to shift the slide. also dont forget the objective lens can be dirty. Especially for higher magnifications, keeping all the lenses and slides perfectly clean will help you see good views of the stuff you are microscoping and no blurr. dont use eye makeup - this soils the ocular horribly

Answer 3

Cover the slide mount with a thin piece of paper and look again. My guess it's that your spot is on the eyepiece or your objective. Remove them an clean them..

Answer 4

just clean them already....