The simple answer, without any further explanation: focus the picture. Just like you'd be blind without the lens at the front of your eye, if the camera had no lens, the picture taken would just be a blur of light and shadow.
In us, our eyes. In man made items they are used in such things as cameras, phones or other optical equipment
Well, so that the inside doesn't get ruined, but also so that the zoom can work properly.
to magnify it
Depends on the type of defect of the eye
cameras can be used in bancks, stors, vacations, or malls.
Lenses should only be used after being prescribed by an optician or optermist! netlenses.com.au
No.
Cameras used in stores are surveillance cameras.
Cameras are used for # Taking Pictures # Recording Videos # CCTV
I believe the elmo document cameras are used more at work than at school. At school many cameras are not allowed, however at work any cameras are allowed to be used.
yes, they are. Contact lens back surface isn't important for the dioptric power; the frontal sourface replaces the frontal sourface of the cornea. So the light angle of incidence is modified and the light focalize correctly on the retina.
Extremely critical.