In digital cameras, the noun CCD size RAW SD card means

CCD is the abbreviation of charge coupled device in English, which is a special semiconductor device with many of the same image sensors, each image sensor is called a pixel. CCD is an extremely important component in the camera, which plays the role of converting light into electrical signals, similar to the human eye, so its performance will directly affect the performance of the camera.

There are many indicators to measure the quality of CCD, including the number of pixels, CCD size, sensitivity, signal-to-noise ratio, etc., among which the number of pixels and CCD size are important indicators. The number of pixels refers to the number of sensors on the CCD. The image captured by the camera can be understood as consisting of many small dots, each of which is a pixel.

Obviously, the more pixels you have, the clearer the picture will be, and if the CCD doesn't have enough pixels, the sharpness of the captured image will be greatly affected, so theoretically, the more pixels the CCD has, the better. However, the increase of the number of CCD pixels will reduce the manufacturing cost and the yield rate, and under the current TV standard, after the number of pixels increases to a certain number, the effect of increasing the clarity of the shooting picture becomes not obvious, therefore, the number of pixels of about one million is enough for general use.

A single CCD camera refers to a single CCD in the camera and uses it to convert the photoelectric light signal and color signal, in which the chromaticity signal is completed by some specific color mask devices on the CCD and combined with the back circuit. Since a CCD completes the conversion of luminance signal and chromaticity signal at the same time, it is inevitable to have both, so that the photographed image cannot meet the requirements of the professional level in color reproduction. To solve this problem, 3CCD cameras appeared.

3CCD, as the name suggests, is a camera that uses 3 CCDs. We know,If the light passes through a special prism,It will be divided into red,Green,Blue three colors,And these three colors are the three primary colors used in our TV,Through these three primary colors,All TV signals including brightness signals can be generated。 A 3CCD system is formed if each color is received separately by a CCD and converted into an electrical signal, and then processed by a circuit to generate an image signal.

Compared with single CCD, since 3CCD converts red, green, and blue signals with 3 CCDs respectively, the image taken is more natural than single CCD in terms of color reproduction, and the brightness and clarity are better than single CCD. However, due to the use of three CCDs, the ** of 3CCD cameras is much more expensive than single CCD, so only professional cameras will use 3CCD.

Look at the explanation of the card yourself.,There's a picture.,I can't post it.。

RAW is a format for images that are not distorted.

Only the more professional digital cameras support RAW storage**.

A common format after export is TIFF

These are all technical terms. CCD refers to the image sensor of a digital camera, and SD card is a type of memory card. It's clear if you go to ** and take a look. Such as sina