Difference Between The Human Eye And Camera

The Human Eye and Camera both are similar things but are used in different ways, In this article, we will talk about the main difference between the human eye and camera.

Difference Between The Human Eye and Camera

Human Eye	Camera
1. Focal length of the human eye lens can be changed.	1. Focal length of the camera lens is fixed.
2. Retina retains the impression of an image for only 1/16th of seconds.	2. Photographic film of camera retains the image permanently.
3. The Same retina can be used for viewing unlimited images.	3. A photograph has to be changed for getting the next image.
4. Image is formed on the retina which is further processed in the brain.	4. Image is formed on the photographic film and processing can be done through computer.

Main Difference Between The Human Eye and Camera

1. The Human eye is composed of natural nerves and organic components whereas a camera consists of artificial materials and components.
2. An Human eye cannot record images whereas a camera can do so.
3. An Human eye does have blind spots where the optic nerves connect to the retina whereas a camera does not have any blind spots.
4. In Human eye, the pupil controls the focus whereas, in a camera, the lens controls the focus in an object or a human.
5. Human Eyes have rods and cones to receive the color accuracy of an image whereas in a camera photosets do the same job.
6. Human Eyes process the 3d image of any subject whereas a camera can only record in 2d.

What is Human Eye?

The human eye is an important and one of the most complex sensory organs that we humans are endowed with. It helps us in visualizing objects and also helps us in light perception, colour, and depth perception. Besides, these sense organs are pretty much similar to cameras, and they help us see objects when light coming from outside enters into them.

What is camera?

A camera is a hardware device that takes photographs and consists of a lightproof box with photosensitive film or plate in the box.

Focus in Eyes and Cameras

Both the eye and camera have the ability to focus on one single object and blur the rest, whether in the foreground (shallow depth of field) or off at a distance. Likewise, the eye can focus on a larger image, just as a camera (greater depth of field) can focus and capture a large scape.

Retina and Film

The retina sits at the back of the eye and collects the light reflected from the surrounding environment to form the image. The same task in the camera is performed either by film or sensors in digital cameras. This process underpins both how cameras work and how eyes work.

Cornea and Lens

The cornea is the “cap” of the eye. This transparent (like clear jelly) structure sits to the front of the eye and has a spherical curvature. The lens of a camera is also transparent (glass) and sits at the front of the body. Like the cornea, the lens also maintains a spherical curvature. The corneal and lens curvature allows for the eye and camera to view, though not in focus, a limited area to both the right and the left. That is, without the curve, the eye and camera would see only what is directly in front of it.

Similarities between Human Eye And Camera

There are many similarities between Human eye and camera but in this article, we have provided some similarities between them.

Human Eye	Camera
1. Light enters the eye through the pupil.	1. Light also enters the camera through the aperture.
2. The iris regulates the amount of light entering the eye.	2. The amount of light is also regulated in-camera with the diaphragm.
3. Focus light and image on the retina in the eye.	3. Focus light and image on film in the camera.
4. The eye contains a lens.	4. camera also contains a lens.
5. There is a choroid that absorbs light and limits reflection in the eye.	5. there is also black paint in the camera which absorbs lights and limits reflections.

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