If you enjoyed this, you'll probably also really enjoy the video teardown of the Sony OSS 16-50mm kit lens. It's cool for two reasons — one is that it's a zoom lens, but the really awesome part is that it has an optical stabilization element. There's also a bit more focus on the electronics and motors.
https://petapixel.com/2016/02/09/this-teardown-of-a-sony-e-m... (blog bait summary — but with a bit more text)
https://www.youtube.com/watch?v=g9umAQ1-an4 (the actual video)