Digital Photography

Instead of creating exposure on photographic film, digital photography creates images focussed by a lens using cameras equipped with arrays of electronic photodetectors connected to an analog-to-digital converter (ADC). The scanned image is saved as a computer file and is then available for additional digital editing, viewing, publishing, or printing. It is a type of digital imaging that gathers light that is visible to the human eye (or, for scientific instruments, light in other electromagnetic spectrum regions).