Megapixel Calculator

How It Works

Megapixels (millions of pixels) determine the maximum resolution and detail in an image. More megapixels allows larger prints and more aggressive cropping, but also means larger files and requires better lenses to resolve the extra detail. Pixel pitch (size of each pixel) affects noise performance: larger pixels collect more light. A 24MP full frame sensor has ~6 micron pixels, while a 45MP sensor has ~4.4 micron pixels, making it more sensitive to diffraction and lens quality.