Photography Advice from National Geographic
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From The Complete National Geographic
Original Content | December 04, 2009
The JPEG format works well with all computers, but some data is thrown out when it is compressed from the original file. The advantage of this is the file is smaller; the disadvantage is less color detail.
Many new point-and-shoot cameras offer another image setting, called raw. This format captures data without any processing—almost like a digital negative—which then can be manipulated on a home computer. The drawback to raw files is that they are at least twice as big as JPEGs. However, if you're serious about your images and want to make exposure changes after the fact or large detailed prints, then raw is the way to go.
About the photo: Kenneth Garrett's September 1998 photo from Egypt captures the intricate alabaster chests that housed the internal organs of King Tutankamen.