Machines are a way of perfecting humans. Cameras, in Vertov’s view, was the new technology that can perfect the human eye. He believed that a camera was a better extension of the human eye. Vertov pointed out that a camera could be perfected more and more while a human eye cannot. There are limitations with war human eyes can capture and Vertov was eliminated those limitations with technology, specifically the camera. Vertov embraced the new technology through his many angle shots.
Not often do I think about the limitations of the human eye because the technology is available everywhere now. An iPhone, a Canon, or other camera devices can capture any moment at any distance today. They help perfect the human eyes (and eye glasses, I guess…).