I find slow motion video to be a fantastic tool to use while troubleshooting pinball machine problems. Pinball mechanisms typically move at speeds faster than we can accurately perceive with the naked eye, so slow motion videos are very useful. Modern mobile phones usually have the capability to capture slow motion video, making it an accessible tool for anyone to use. It's also a great way to learn how various mechanisms work, and how their individual parts behave. Below are a number of videos depicting how various pinball machine mechanisms operate in slow motion.