I had a large 3 inch by 2 inch slide with a large 36 x 60 mm cover glass sealed with vaseline that I had let sit for a while. It originally had been a very active bacteria and Paramecium slide. Since the slide was sort of dirty I only used dry objectives.
For the first picture I used the Leitz NPL FL 63/0.90 Phaco 4 lens. This unknown amoeba was deep and hard to get a good pic of, but I was aided somewhat by the correction collar. I also used a deep blue fluorescence filter so there is a narrower wavelength to focus on.
Next these Paramecia were visiting a corner in the vaseline where some bacteria had accumulated. They were very fast. I used the Leitz Achromatic 40/0.65 Phaco 2 lens and same fluorescence filter.
