PetaPixel

Light Sensitivity of the Human Eye

As the low-light capabilities of high-end (and even low-end) cameras rapidly improve, it’s easy to marvel at technology and forget how amazing our own eyes are, but here are some mind-boggling facts to consider: did you know that the human eye can detect as few as two photons entering the retina, and that, under ideal conditions, a healthy young adult can see a candle flame from 30 miles away? To see how mind-boggling that is, try using Google Maps to find a location 30-miles away from where you live.

According to neuroscientist Bradley Voytek, the reason we don’t utilize our full sensory potential is because we’re not paying enough attention to them — kinda makes you want to put down your camera and focus on staring at things, huh?

We are all inattentive superheroes (via Boing Boing)


Image credit: Eye by Furryscaly


 
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  • http://twitter.com/d7e7r7 David Ritchie

     I was hoping for an estimated ISO rating for the human eye… 
    Well that’s how I read the post title….

  • Ed1987

    Have a look at http://x1brettstuff.blogspot.com/2007/03/human-eye-tech-specs.html

  • Ed1987

    Have a look at http://x1brettstuff.blogspot.com/2007/03/human-eye-tech-specs.html