A person who is interested in using the opportunities that's in Raw format, should first of all understand what is the format. Registration takes place in two stages of digital images. Megapixel, color and noise - that is, all matrices of the cameras, the image has passed through the camera lens in the first cast is sensitized to digital converter. When light pulses are converted into electrical impulses, and these in turn to a numerical value corresponding to intensity of light registered by each individual cell. Yes to save the matrix goes to the image processor - a computer specialist, whose task is to replace that which provides the matrix prepared in the photo file. This processor is responsible for white balancing, sharpening the image, noise, the use of so-called. Picture Styles, the imposition of visual effects, and many other activities.

If we were able to see the photo saved in RAW format with no interpolation of missing color components, we will get a mosaic of colors green, red and blue. Even after the conversion of the image to shades of gray''the system'' would be visible in the form of regular grid points with different brightness. Picture in JPEG or TIFF images are generated after processing the signal from the matrix by the image processor. RAW while to record the signal from the matrix in its pure form - to the extent that it is difficult here to speak up to your desktop, as in the collection of RAW does not have even the color of individual pixels. As is known, the matrix is transmitted to the camera only stores information on color, ie. subpixels, of which only in the process of interpolation (or in the case of type transducers Foveon - overlap) is being played back full color photos.
 
Good to know - just all the titles in the article - that the record in the RAW format is not a feature available only to the SLR. Many advanced compact cameras (with the latest, you can even replace the Nikon COOLPIX P6000 and the Canon PowerShot G10 has the same possibility.