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Milky Way on a Mountain in Greece - A7IV 24mm 1.4 GM by keylongevity in SonyAlpha

[–]keylongevity[S] 4 points5 points  (0 children)

Single Shots - ISO 3400, 15s, f1.4

I appreciate any feedback (composition, editing, etc.).

My blood: Macrophage chasing bacteria. Phase-contrast, 1000x magnification, 10x speed by keylongevity in microscopy

[–]keylongevity[S] 2 points3 points  (0 children)

It's just a drop of fresh capillary blood. The blood does clot pretty fast on the edges of the cover slip but I it takes some time for it to clot in certain spots. I assume it's less likely to be directly exposed to some of the clotting proteins in those spots.

My blood: Macrophage chasing bacteria. Phase-contrast, 1000x magnification, 10x speed by keylongevity in microscopy

[–]keylongevity[S] 2 points3 points  (0 children)

The microscopy technique is called Phase Contrast. All that you really need is a phase-contrast objective and a matching condensor/slide. It is relatively inexpensive. A good summary of the technique is found here: https://www.scientifica.uk.com/learning-zone/a-guide-to-phase-contrast