At first the lens is passing no light at all, but he just strips down parts until he can see through it. There are a couple of servo motors which control zoom and focus. He removes those before ...

Changing the focal length of a camera by adjusting the physical zoom lens. All zoom lenses in film cameras and digital single lens reflex (DSLR) cameras are optical zoom. Digital point-and-shoot ...

The new Canon RF 16-28mm F2.8 IS STM ultra-wide zoom lens is a smaller and cheaper alternative to Canon's pro L-series lenses ...