Pixels and CCD

While digital cameras popular speed is too fast, but for digital cameras really know very little of it. Thanks go to stores and dealers in communication, there are many natural and ordinary consumers face-to-face opportunities. "Trouble, here are 8 Megapixels digital camera?" and "How did you hear about 300 million pixels, so machine-beat out photo effect is very poor," "

While digital cameras popular speed is too fast, but for digital cameras really know very little of it.

Thanks go to stores and dealers in communication, there are many natural and ordinary consumers face-to-face opportunities.

"Trouble, here are 8 Megapixels digital camera?"

"How did you hear about 300 million pixels, so machine-beat out photo effect is very poor."

"I just buy a good digital camera picture quality, 500 million following you don't give me up"

In fact, these are just some of the more I elected a classic example, due to the consumer for the misunderstanding of understanding pixels, so easy to picture quality and pixels, illusion that high pixel, take photographs, but it is not always clear.

For consumer-level digital cameras, with particular emphasis on price/performance of home-digital cameras, if you blindly pursuing high pixel, you are likely to damage the camera itself features, such as zoom, macro, or even the lens quality, single image, the picture quality of the fine and the camera, CCD, digital processing chip, and other parts have a relationship, especially the CCD sensor component is not what we expected, pixel, the more the picture quality is clear, on the contrary, if in CCD size the same, the higher the picture quality on the pixel, the less clear.

Next we give everybody from principle to score a few points about what is a CCD sensor components, pixel values how much is the most appropriate.

CCD?

CCD sensor is also called the charge-coupled device, it is a special kind of semiconductor materials, by a large number of independent photographic diode, arranged in accordance with the matrix in General, the equivalent of a traditional film camera.

At present, the type of CCD, CCD surface formation which is mainly used in digital cameras.

It is composed of many individual photographic diode array, consisting of a square, then the same as brick will build these photographic diode array to composition can output a certain resolution image of CCD sensor.

Its principle is to use the photographic imaging diode will convert the charge light, when the photographer af is complete press the shutter, light by opening the shutter (current consumer-level digital cameras, basic and are based on electronic shutter) through mosaic color into the CCD image sensor, sensitive diodes to accept photon impact after releasing electrons, the number of the electronics and the PC diode sensing proportional to light.

When the exposure is finished, each sensitive diodes with a different number of e-mail, and we can see in the video above is the digital image by the number of electrons and to represent and store, and then control circuit reads from CCD image, red R, green g, and blue B color synthesis, and zoom in and it is digital, the digital signal is deposited digital camera cache, and finally write the camera mobile storage media complete digital photo shoot. (Due to CCD technology is developing rapidly, the principle only applies at present most of the consumer-level digital cameras, like the Sony super HAD CCD 4color etc works are not the same)

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SUPER CCD really magic?

SuperCCD is Fuji original a CCD technology has been developed to the fifth generation of SuperCCD.

The CCD technology and earlier standard CCD the biggest different is that it has changed the matrix CCD synthesis of the four primary colors-point one pixel point of principle, the Octagon for the construction and continuous flow of geometry, the honeycomb structure of the photographic unit can better take advantage of the CCD surface space in pixel is equal to get more information.

It should be said, using the SUPER CCD technique of Fuji camera indeed in picture quality than ordinary CCD camera great, especially in color, the performance outstanding.

But since the Fuji introduced this technology, the actual pixel and the maximum output of disagreement between the pixel is not stopped, especially in the midrange S602 and product¡¡ S7000 above reflect the more prominent, S7000 interpolation outputs can produce 1230 megapixels, but its actual pixels only reaches 600 million.