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Live preview is a feature that allows a digital camera's display screen to be used as a viewfinder. This provides a means of previewing framing and other exposure before taking the photograph. In most such cameras, the preview is generated by means of continuously and directly projecting the image formed by the lens onto the main image sensor ...
For low light situations the screen of choice is plain, for architectural images and very wide angle lenses the choice is one with a grid etched on it to control the perspective distortion, for fast focusing the split screen is the screen of choice and so on. Cameras with interchangeable film formats (view cameras, field cameras and some medium ...
Digital viewfinders are used in digital still cameras and in video cameras. Some cameras (such as Panasonic, Sony, Fujifilm) have an automatic eye sensor which switches the display from screen to EVF when the viewfinder is near the eye. More modest cameras use a button to switch the display. Some have no button at all. [2]
Cameras with integrated Wi-Fi or specific Wi-Fi adapters mostly allow camera control, especially shutter release, exposure control and more from computer or smartphone apps additionally to the transfer of media data. Cameraphones and some high-end stand-alone digital cameras also use cellular networks to connect for sharing images.
Basic view camera terminology. A view camera is a large-format camera in which the lens forms an inverted image on a ground-glass screen directly at the film plane.The image is viewed, composed, and focused, then the glass screen is replaced with the film to expose exactly the same image seen on the screen.
The process can involve filming several elements using the same camera motion, and then compositing the elements into a single image. Other effects are often used along with motion control, such as chroma key to aid the compositing. Motion control camera rigs are also used in still photography with or without compositing; for example in long ...
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Photographers control the camera and lens to "expose" the light recording material to the required amount of light to form a "latent image" (on plate or film) or RAW file (in digital cameras) which, after appropriate processing, is converted to a usable image. Digital cameras use an electronic image sensor based on light-sensitive electronics ...