https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2134872/ Quote: When a Vorticella cell is frightened, it can contract its tail, which contains a striated fiber called the spasmoneme, at a rate of 10 cm/s. ...which converts to 0.36 km/h. Which is of course not very fast compared to a cheetah. But on a ...

I reckon that Vorticella could be a contender for the fastest moving life form or perhaps one of the fastest. Though when I read online about what is believed to be the fastest examples of living things, Vorticella is not mentioned. Actually, no microscopic organisms are mentioned. What makes these ...

Beautifully surreal. It reminds me of some of the underground scenery in the 1959 movie Journey To The Center Of The Earth.

https://www.youtube.com/watch?v=4GsN66CB9sc

No, you linked just a hole adapter That's what comes up in most google search results when you type "LED downlight plate." A dimmable model would be preferable 10W LED is quite a beast, roughly equivalent to 60W incandescent, I wold prefer a 6W and even then in many case you will have too much ligh...

I'll hold off on buying a camera for now and work towards getting my Canon 5D connected. Seeing that your Canon 5D has a much larger sensor than the Swift and Motic cameras, you'll likely get better results with the Canon. So it may not even be worth considering the microscope cameras. Though perha...

I'll hold off on buying a camera for now and work towards getting my Canon 5D connected. Seeing that your Canon 5D has a much larger sensor than the Swift and Motic cameras, you'll likely get better results with the Canon. So it may not even be worth considering the microscope cameras. Though perha...

I've been doing macrophotography and water drop collisions for a few years and recently got interested in microscopes (haven't touched one since high school). Welcome to the club! Actually, your experiences sound just like mine. One of the things I enjoyed in science class in high school was viewin...

Thank you for your detailed reply. Very informative. When you stop down the diaphragm, you are narrowing the cone of light that it produces. This is completely normal. It occurs whenever you're working with a low magnification objective, which can accept only a narrow cone of light. Most of the rang...

Thank you for the informative reply. After using my microscope today, I'm actually hesitant about using option 2. It seems that I have to close the diaphragm almost all the way to darken the image a little. And with such a small diaphragm opening, I'm guessing that I would lose a fair bit of resolut...

Very nice! What's the specimen? I'm guessing it's the leg of some kind of invertebrate?

Stunning!

AdobeStock checks more the content and ShutterStock more the technical quality. But they both reject images with people and famous sightseeing’s. Not necessarily. Shutterstock and Adobe Stock accept photos of people with model release forms. Additionally, Shutterstock also accepts photos of famous ...

I've sold many images at Adobe Stock, some for as little as .7 cents I'm finding that very surprising to hear. I contribute to Adobe Stock as well and I have never received low commissions like that. Never heard of anyone else getting those either. Usually, I get around .99c from Adobe Stock and on...

Regarding the mirror, there is another approach that you might like: stick an ordinary index card or piece of white paper at the location where the mirror would go, and shine a bright light on the paper. I tested just now with a small LED flashlight and an index card, using objectives from 4X to 10...

A dimmable model would be preferable 10W LED is quite a beast, roughly equivalent to 60W incandescent, I wold prefer a 6W and even then in many case you will have too much light Thanks for the added info. So looks like these would be quite ideal. Though like I mentioned before, they probably don't ...