How Does My Digital Camera Work?
The introduction of digital cameras marked a landmark in the development of photography. They are extremely different from traditional film based cameras. Film based cameras relied on the simple method of exposing a photosensitive chemical known as camera film to a scene which creates an imprinted image also known as negative. They are far more advanced and use CCD (Charge-Coupled Device). CCD is an electronic device that creates an electric charge when the photons strike against a photosensitive material. This phenomenon is knows as photoelectric effect. The device are equipped with ‘chips’, these chips can be CCD, CMOS (Complementary Metal Oxide Semiconductor), foveon or others. These chips replace the films used in older cameras. The digital cameras also have a smart digital sensor which has ‘pixels’ laid across it. Just to give an insight into the resolution power of these sensors, a sensor with 3702×2704 pixels will have over 10 million pixels giving the camera a rating of 10 ‘Meg
