Take a look at the example below - these images were captured using the UX1 Achromat microscope 100x oil immersion lens. The first image was captured dry, the second using microscope immersion oil.
|Duodenum captured using a 100x achromat oil lens dry (without immersion oil).|
|Duodenum captured using a 100x achromat oil lens with immersion oil.|
Visit this "Microscope Immersion Oil Explained" page to learn more about why, when and how to use immersion oil.