Earlier this year we looked at similar videos for Canon lenses, and now it's interesting to see one of the other major lens makers show off the tech inside their lenses:

We take them for granted in some ways, but lenses are getting faster, smaller, and sharper, especially compared to when they were designed without the aid of computers. I'm a geek so I love seeing how things work, but the video really gives you an appreciation for how complex and how cheap they are considering everything that's happening inside them.

Source: Nikon Asia