in a previous post, I was fascinated by the components of human blood, and how they look nothing like most illustrations of blood. I did these photos with immersion microscopy, yet I did not use oil immersion. Instead, I simply put the microscope lens directly into the specimen of water blood mixture, so there was no air refraction. What I am still curious about is the spherical shape of the blood. I need to do more tests with hypertonic and hypotonic solutions to confirm the shape of my fingertip blood.
Original post about looking using immersion microscopy, mysteries of blood:
crypto_voyage 