What is Immersion Oil and Why is it Used?

Oil immersion microscopy is a technique used in modern microscopy to increase the resolution and clarity of microscopic images. It involves using a special type of oil to fill the gap between the microscope's objective lens and the microscope slide. This process improves the light-gathering ability of the microscope, allowing for sharper images and more accurate measurements.

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In this article, we review:
How oil immersion microscopy works
How to use the oil immersion technique
Advantages and disadvantages of oil immersion microscopy

Updated on: 07/03/2025