By An electronic image sensor is a semiconductor device that converts light entering a camera lens into electrical signals, which are then processed to create digital photographs. This small chip, typically measuring just a few centimeters across, has replaced traditional film as the recording medium in virtually every camera made today, from smartphones to professional cinema equipment.
Understanding how image sensors work matters because this technology directly affects every photograph you take. The sensor’s size, resolution, and design influence image quality, low-light performance, depth of field, and even the physical …
