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Real World Aperture by Ben Long

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Chapter Six. Editing Raw Files

By default, your digital camera probably outputs JPEG files. JPEG (short for Joint Photographic Experts Group, the organization that created the JPEG specification) is a fairly amazing technology that makes it possible to greatly reduce the file size of an image with little discernable loss in quality.

JPEG files are ideal for digital cameras, where storage space can be limited and a smaller file size can mean a speedier camera. But JPEG files require your camera to do a lot of extra work. To create a JPEG file, your camera has to perform a substantial amount of image processing, some of which is the same type of processing that you do in your image editor.

When your camera creates a JPEG file, it makes some decisions ...

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