Resolution of the Human Eye
Megapixel is the most common unit for specifying the sensor and image resolution in digital photography. One megapixel is equivalent to one million pixels.
According to the calculations in a latest research, the human eye has about 576 megapixels. As compared with the resolution of the eye of a bald eagle, its still meagre, as a bald eagle's eye has 1296 megapixels.
It is amazing to realise that mother nature is so rich is chemistry and physics that things that we take for granted are actually marvels of evolutionary engineering.
Our eyes are a set of complex organs which help us see and understand our surroundings. Over billions of years, evolution has deviced it to become so perfect that creating an artificial human eye will require a 576 Megapixel camera!
Also, our eyes can distinguish up to ten million colour surfaces and take in more information than the largest telescope known to man.
To know the Focal length and aperture of our eyes, this is what www.wikipedia.com has to say:
"Computing the f-number of the human eye involves computing the physical aperture and focal length of the eye. The pupil can be as large as 6–7 mm wide open, which translates into the maximum physical aperture.The f-number of the human eye varies from about f/8.3 in a very brightly lit place to about f/2.1 in the dark. The presented maximum f-number has been questioned, as it seems to only match the focal length that assumes outgoing light rays. According to the incoming rays of light (what we actually see), the focal length of the eye is a bit longer, resulting in minimum f-number of f/3.2."
Science Blurt. Because Everything is Science.
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