Basic knowledge of Digital Cameras

What is Digital?

Before we discuss what the digital camera, perhaps we can try to understand first what is the Digital? For those who have not yet know, this world we are all analog. Humans can recognize digital spelled not too long. In ancient times all the machinery and equipment run on analog machines, even up to now is still a lot of machines that run the system is still analog. An example is the camera, especially your own. Lens you use mechanical technology. However the film camera that most certainly have a part of the digital technology. If the camera has the LCD panel, to be sure it is a digital technology. According to my "Digital is the future", would not want to we can not avoid all that is around us will be using digital technology.

What is a Digital Camera?

I think all people certainly never seen a camera. If it is not where you may visit this site. But it is possible that some of you who have never held a digital camera (not intend ridicule). The camera's digital still camera is similar to the (type of film), the largest difference between digital cameras do not use film. Forget it went to the store to buy the film every time you go photographs. Digital camera does not require a film at all. This all changed with the storage media that can be removed back, the withdrawal computer disk. Nah have a computer disk khan own capacity, as well as the camera memory. Sizenya from 8MB to 4GB (4000 MB), this data is valid at the time of Dec 2003. The format is diverse, for example: Compact Flash (Type 1 and 2), SD card, MMC card, Memory Stick (Special Sony camera), floppy disks, CDR. One thing is for sure from the media like this, you can save costs because the media can be used many times.

Let's go to the technical part of this digital camera. Questions .... how a digital camera to catch the incoming light from the lens? Light is not arrested by the memory (see above), working memory only save images that have been processed. The incoming light is captured by CCD sensor or CMOS sensor. CCD (Charged Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor) is a chip that is located right in the back of your lens.
CCD sensor (Not suitable size of the original). Original size much smaller

For most digital cameras in the chip market is very small, smaller than the size of 35mm film. At this time only one that has a camera sensor that is of 35mm Canon 1Ds. So for a digital camera, this is the sensor is a film. CCD and CMOS technology, which is 2 commonly used in the camera. Generally, the camera on the market use a CCD sensor. There is still one type of chip, called the X3 sensor, but this is still not commonly used because it is still expensive and the quality of the resulting photo is still not too different from the 2 sensors that I utarakan before. Every time you buy a certain camera asked how many want to buy a megapixel, megapixel tahukan you here is the number of pixels on the CCD or CMOS sensor you. So if you have a 4 MegaPixel camera, CCD sensor means that you have about 4000000 pixels. One pixel is very small, and the pixels that capture only one type of color. If the sensor over the enlarged pixelnya seen until then about that as you will see the picture below.



Most of the sensors in the market using the format RGBG, pixels to capture more green. Pixel its own color does not, over a coating color pixels.

Because the digital cameras have sensors that is less than the film, the long lens fokal is not valid as the regular film camera. Ideally I should be the size of sensor is equivalent to the film, but it is not possible. For the sensor to measure the price of film camera you can very expensive price (Only have 1Ds Canon sensor is 35mm, the price $$$$). Moreover the size of a mini just like now, the picture quality is satisfactory lumayan.

Plus and Minus of a Digital Camera

As I first utarakan that "Digital is the future", then I will give some point of the camera plus a digital camera than a film:
- If it is calculated in the long run, cheaper digital cameras. For the film does not need to buy, and the portrait that can be removed and failed to live longer take the shot.
- The real-time portrait, we can see the results whether it is not.
- Because the format is to process the digital editing is easy, only need to connect to the computer and edit (Scanner is no longer required)
- Memory digital camera is very large so you need not be too quick to buy new memory

No technology is perfect, therefore I need to point minus from a digital camera:
- Tend to have a digital camera SHUTTER lag longer than the type of camera film.
- Price camera tend to be expensive compared to the type of camera film
- Due to the size of the sensor does not match the type of film camera, the wide angle to get a shot on the DSLR are required to buy a wider lens.

The first of this article, I hope this knowledge can be useful for the readers. All here know that I have taken from various sources, one of which I very DPReview.com it is complete. Please visit this site, to the digital camera can click "Glossary". To book on Digital Photography, I suggest Tom Ang's book entitled "Digital Photographer's Handbook". Make you want to learn about the basic photography I can recommend "National Geographic Photography Field Guide: Secrets to Making Great Pictures."

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