12-Bit vs 14-Bit RAW: Which Should You Use?
Briefly

Your camera is a very capable imaging device, one that would have been the envy of every photographer in the world just a few years ago. You don't have to understand everything about RAW, JPEG, and other formats to take great shots, and you don't have to think about file formats if you're spending time taking photos that you like.
When you take a photo with any camera, a massive amount of color information is captured by the camera's image sensor, analyzed by a computer chip, and saved to your memory card. Understanding the details of RAW compression formats can help capture the best suited RAW files for your goals.
Read at Digital Photography School
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