https://spectrum.ieee.org/geek-life/han ... spberry-pi
Quoting from the start of the article:
--RikBuild A Sophisticated Microscope Using Lego, 3D Printing, Arduinos, and a Raspberry Pi
A DIY experiment at IBM Research–Europe became a valuable tool
By Yuksel Temiz
I am a member of a team at IBM Research–Europe, in Zurich, developing microfluidic technologies for medical applications. Two years ago, I was asked to provide high-quality photos and videos of our microfluidic chips for a big tech event. I borrowed a 4K camcorder from a colleague, attached a macro lens to it, built a custom light diffuser using an LED matrix and polyester film, and positioned everything using a high-end tripod and a few micromanipulators. I was able to take eye-catching videos as liquids filled microfluidic channels. It was clear to me that this should be the new level of quality and style for our publications and presentations. However, my photo setup occupied half a bench in our lab and it required hours of fine adjustments to record one shot.
We have a tradition of inventing microscopes at IBM in Zurich. In 1981, Gerd Binnig and Heinrich Rohrer created the scanning tunneling microscope here. As a DIY enthusiast, I quickly found myself in my own quest to build a better setup. The result was a US $300 modular and motorized microscope that combines my three favorite adulthood hobbies: Arduino, Raspberry Pi, and Lego.
Edit: to fix formatting problem introduced by forum software upgrade