There’s a trick here, I just can’t quite figure it out. Ordinary
cameras, for centuries now since the very first experiments in
optics, have relied on organizing lenses in sequence to recreate
an image. Even our eyes work on this principle. Moving the
lenses around creates zoom, changing focus, and results in more
or less light transmission. The device described by Professor
Keigo Iizuka at the University of Toronto, breaks with that
tradition. As you can see in the images, objects only
centimeters from the front of the device are as sharp as objects
several meters away. How is this possible? Traditional cameras
could make it happen using an extremely small aperture. At F/22,
a common minimum aperture value, you’re essentially getting a
pinhole image, and the way the light is bent and re-bent results
in the entire image being in one focal plane. I doubt this new
device is simply a pinhole camera, though. They call it a
“Divergence-ratio Axi-vision Camera,” or Divcam for short. Not a
lot of clues there except