Caleb loves photography and he's serious about it as a hobby. But he wants to know about shooting in raw. What is that? Leo says that's where the camera doesn't compress any of the data or process it. It just writes the raw image and it usually covers the entire area of the sensor. But in order to look at it, you have to process it later with a program that can understand the data and render it into an image. But Caleb can also choose to save as JPEG to save on space. But it's also considerably compressed. JPEG is only good if you don't want to post process it and color correct it. Pros shoot Raw, but most shutter bugs shoot JPEG. It's always better though to have more data and Raw buys you that.