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Photography – process of making pictures by the action of recording light patterns, reflected or emitted from objects, on a photosensitive medium or an image sensor through a timed exposure. The process is done through mechanical , chemical , or electronic devices known as cameras .
This is an accepted version of this page This is the latest accepted revision, reviewed on 21 January 2025. Art and practice of creating images by recording light For other uses, see Photography (disambiguation). Photography of Sierra Nevada Photography is the art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically ...
The format may vary. It might be a video of a teacher speaking to the camera, photographs and text about the topic or some mixture of these. Animated video lessons, in particular, use engaging visuals and simplified explanations to help break down complex topics, making them especially effective in subjects like Science or Math. [1]
Modern day students have more access to photography classes as a result of digital photography's ease in comparison to film. In its early stages, photography was mainly used for physically preserving a family's heritage. It has now evolved into a key part of individual identity in the 21st century. [42]
Generic mode dial for digital cameras showing some of the most common modes. (Actual mode dials can vary; for example point-and-shoot cameras seldom have manual modes.) .) Manual modes: Manual (M), Program (P), Shutter priority (S), Aperture prior
The science of photography is the use of chemistry and physics in all aspects of photography. This applies to the camera, its lenses, physical operation of the camera, electronic camera internals, and the process of developing film in order to take and develop pictures properly.
(In photography, the magnification is usually defined to be positive, despite the inverted image.) For example, with a magnification ratio of 1:2, we find f = 1.5 ⋅ F {\displaystyle f=1.5\cdot F} and thus the angle of view is reduced by 33% compared to focusing on a distant object with the same lens.
Two silver halide particles, one of which is impinged with light (hν) resulting in the formation of a latent image (step 1). The latent image is amplified using photographic developers, converting the silver halide crystal to an opaque particle of silver metal (step 2). Finally, the remaining silver halide is removed by fixing (step 3).