1.8 Eye vs Camera Lenses

Question 1

What is the difference between the eye and camera lens based on…

Focusing adjustment?

Answer 1

Eye: change lens shape via ciliary muscles
Camera: change lens position

Question 2

What is the difference between the eye and camera lens based on…

Image?

Answer 2

Eye: real, inverted, diminished
Camera: real, inverted, diminished

Question 3

What is the difference between the eye and camera lens based on…

Image detection?

Answer 3

Eye: use light sensitive cone and rod cells in retina
Camera: light sensitive film or ccd

Question 4

What is the difference between the eye and camera lens based on…

Brightness control?

Answer 4

Eye: iris changes shape
Camera: adjustment of aperture

Question 5

Lens movement of camera if the object is too close or far from the camera?

Answer 5

Too close: lens moves away from film

Too far: lens moves near the film

Question 6

Why does the lens move away from the film if the object is too near the camera?

Answer 6

So there is space for it to converge and hit the focal point

Question 7

What is the difference between the eye and camera lens based on…

Type of lens?

Answer 7

Eye: flexible, allows it to thicken so changes focal length, converging
Camera: fixed focal length lens, converging