In photography…light is everything. Understanding how your camera reads light and determines correct exposure is hands down the most important thing your camera does, yet it is also one of the most misunderstood. Your camera has different ways that it reads light by using an internal light meter, and depending on which metering mode you have your camera set on, it determines the correct exposure. For the most part, the metering mode is untouched buried in the camera settings, because for the most part, when you’re in the Matrix…life is good. Matrix is the default metering mode for all modern Nikon DSLR camera bodies, also known as Evaluative Metering for Canon, and is often never changed, actually it’s recommended by many that you not change it because it works so well, but that’s not always the case. I’m going to explain a little bit about leaving the Matrix default mode and why you would want to such a crazy thing, but first I’m going to do a quick explanation about what metering is exactly.