A digital camera takes the light emitted from the photo subject, and focuses it into the image sensor within the camera. Instead of photographic film, a digital camera has a light-sensing grid called a CCD or CMOS, which can record light as binary data that represents the brightness and the color frequencies. It records the data for millions of individual points, called pixels, which can be put together to recreate the original image. This is the same technology used in almost all computer images.
Using Digital Cameras
Let's say you want to take a picture and e-mail it to a friend. To do this, you need the image to be represented in the language that computers recognize -bits and bytes. Essentially, a digital image is just a long string of 1s and 0s that represent all the tiny colored dots -- or pixels -- that collectively make up the image.
At its most basic level, this is all there is to a digital camera. Just like a conventional camera, it has a series of lenses that focus light to create an image of a scene. But instead of focusing this light onto a piece of film, it focuses it onto a semiconductor device that records light electronically. A computer then breaks this electronic information down into digital data. A digital camera has a sensor that converts light into electrical charges.
The image sensor employed by most digital cameras is a charge coupled device (CCD). Some cameras use complementary metal oxide semiconductor (CMOS) technology instead. Both CCD and CMOS image sensors convert light into electrons. A simplified way to think about these sensors is to think of a 2-D array of thousands or millions of tiny solar cells.
Once the sensor converts the light into electrons, it reads the value (accumulated charge) of each cell in the image. This is where the differences between the two main sensor types kick in:
The amount of detail that the camera can capture is called the resolution, and it is measured in millions of pixels (megapixels). The more pixels a camera has the more detail it can capture and the larger pictures can be without becoming blurry or "grainy."
Traditional cameras work by exposing a certain chemical with photosensitive properties named film to produce an imprinted image of a scene that appeared in front of the camera. Digital cameras work very differently from this analog technology.
A digital camera works by using something referred to as a charge coupled device or a CCD for short. This is an electronic device that is able to create a pixel map of an image of what appears in front of the camera. It can create this pixel map by using an electric charge produced by photons that are shot into a photosensitive material.
This phenomenon that digital cameras take advantage of is referred to as the photoelectric effect. This effect was in fact first discussed in a paper by Albert Einstein in 1905. Today, this technology is used in most digital cameras. Fewer digital cameras use an alternate technology that implements something referred to as complementary metal oxide semiconductors or CMOS for short.
The images produced by a digital camera that implements CCD are digital by definition. They exist at a certain resolution determined by the number of pixels produced by the camera. They are instantly encoded digitally and can then be transferred from the camera to a computer, phone, or printer.
The charge coupled device inside a digital camera operates as an integrated circuit. This means the device uses a number of different semiconductors in a unified platform to operate. The components that are active in this device are called capacitors. They link together in a circuit, and this is the reason the device is referred to as charge coupled. A capacitor is a component of an electronic device that stores voltage between two plates that have opposite and equal electric charges.
The image that appears in a photo is produced after a lens in the digital camera projects that image onto the charge coupled device. The different capacitors then produce a charge that is equal to the brightness of the light projected onto the device. However, CCDs are not designed to be sensitive to color. Something referred to as a Bayer mask is actually used to filter the light into different pixels depending on their color.
just switch on it and capture what do you want its very easy to use
"Digital camera" is two words. "Camera" is a noun and "digital" is an adjective describing the camera. Neither word is a verb.
They should work on Minolta digital cameras, and possibly the new Sonys as well. Check carefully into the camera specs.
Kodak invented the digital camera.
You would have to use a Minolta SLR digital camera with a Minolta lens. However, don't automatically assume an old Minolta lens will work on a digital camera. You need to determine whether the digital camera accepts interchangeable lenses and whether it accepts the specific Minolta SLR lens and mount you have. There is no real generic answer to this question.
I prefer film cameras to digital cameras. The pictures look better.
A small digital camera vs a big digital camera will work almost exactly the same. The differences are the features included. A big digital camera will have a viewfinder mechanism, an adjustable and interchangable lens, and a bigger sensor, while the small digital cameras will not.
It is read by a digital piece of equipment, such as a digital camera.
it works by sending information to the 'brain" of the camera
Your digital camera's memory card will only work in a PSP if it is a Memory Stick Pro Duo adapter.
A digital camera is hardware. The computer program inside that runs it is software. ----------------- Both, alone the camera (hardware) would not work without the program (software) inside it.
The main difference between a digital camera and a regular camera is that a digital camera does not need film in order to work. The Canon A430 is inexpensive and a good starter digital camera. It's priced around $170 but will last you a long time.
Yes, the Targus Digital Camera Accessory Bundle work with a T70
Digital Camera!
A Canon digital camera battery can be replaced by buying a Canon digital camera battery and putting the Canon digital camera battery in the Canon digital camera battery socket of the Canon digital camera.
Lithium batteries, made by Energizer, Duracell and many others, are considered to be the best type of battery for a digital camera.
It all depends on the kind of digital camera you have, if the lens mount is the same on both of the cameras, then the lens will work (Minolta and Sony are interchangeable) Off camera flashes may also work, again depending on the kind of camera(s). And of course, film wont.
It depends upon the Megapixels in your mobile phone camera. If you want good quality photos, it is better to buy a digital camera, since pictures taken with a digital camera have more clarity, and color depth. Also features such as flash, and image stabilization work much better in a digital camera.