how does digital camera works ?

Question

Is it without film role?

Answer 1

a digital camera and film camera aren't all that much different.

both film and digital cameras have the same basic make up..lens, arpeture, shutter and the ability to focus (somewhat).

Light enters the lens where it's refracted and focused...along the way the user (or the camera) adjusts the distance of the lens to keep things in focus..a device inside adjusts the amount of light that passes through to the shutter, on most film cameras and digital SLR's, this can be adjusted, but it's a pretty advanced feature, and the majority of your point and shoots won't have that..it'll be controlled by computer. the shutter is basically a little door like thing that has to open and close within, sometimes, up to a thousandth of a second. this is pretty much where film and digitial cameras seperate becuase the next portion deals with photo storage.

in film, the shutter flips, the focused light then hits the frame on film, causing all kinds of chemical reactions with the material. additional chemical processing removes unchanged material and the film developes, it's a complex and technical task and i never understood color film.

in a digital camera however, the film has been removed entirely and usually one or two types of image sensors are used, CMOS in cheap cameras and CCD in better cameras. these basically take the light from the lens and converts it to an electrical signal...the number of points were a reading is taken is how you get the resolution of the camera. from there the camera processes it and saves it to a memory card.

a couple of years ago, one company was actually working on a device called silicon film for film cameras that contained the electronics of a digital camera, but used your existing camera stuff...the ideas was people with SLR's could pop these things in thier cameras and start shooting digital photos..nothing ever surfaced.

Answer 2

A Digital Camera stored pictures in a small mamory card that is in digital camera. You can take it anywhere wherever you want it. It runs with batteries in it.

Answer 3

very broad question, but to answer your film point...it records data on a memory card which replaces the film.

Answer 4

go to
howstuffworks.com
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