How Many Megapixels Do You Really Need? Iphone 8 12 Megapixel Camera
Megapixels have become the ultimate measure of a camera. If your cousin has a phone with more megapixels than your year-old point-and-shoot camera, clearly he must have the better, higher-quality device. Right?
Wrong.
Megapixels vs. pixel size
Like calories, megapixels are a measure of quantity, not quality. You need a certain number of megapixels depending on the way to want to share a photo. But just as the number of calories in a meal doesn't say much about how nutritious it is, the number of pixels in a camera doesn't say much about the quality of the image they can capture.
Quality is a complex issue based upon a camera’s optics, image sensor design, firmware, engineering, and yes, its pixels — but not its megapixel count. At the heart of your camera is the image sensor, which contains the array of pixels. These pixels are like buckets that collect photons (i.e., light).
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