মোবাইলের অসাধারন ক্যামেরা CAM
The camera, a ubiquitous tool of modern life, has evolved from a simple light-capturing box to a sophisticated instrument. At its core, it replicates the human eye: light enters through a lens, focusing an image onto a light-sensitive surface. Early cameras used chemical film, later replaced by digital sensors.
The lens, a critical component, controls focus and depth of field, manipulating how much of the scene is sharp. Aperture, the adjustable opening within the lens, dictates how much light reaches the sensor, affecting exposure and creating artistic effects like shallow depth of field.
Digital cameras convert light into electrical signals, which are then processed and stored as images. Resolution, measured in megapixels, determines the level of detail captured. Modern cameras offer a range of features, from automatic settings for ease of use to manual controls for creative expression.