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Video magnifiers are electronic devices that use a camera and a display screen to perform digital magnification of printed materials. The display screen is usually LCD or a similar flat-screen technology (although older video magnifiers have used CRT displays), and the device usually includes a lamp to illuminate the source material.
The camera is usually fitted with a light source, although extra sources (such as a fiber-optic light) can be used to highlight features of interest in the object. They generally offer a large depth of field and a range of magnification when examining the image on the computer. The camera is usually sufficiently sensitive to generate an image ...
Cameras may have an intelligent zoom feature that allows an additional magnification of 2.0× on top of its optical zoom. Many cameras have 2 options: 1.4× and 2.0×. [ citation needed ] The intelligent zoom only uses the centre of the image sensor and does not interpolate the original resolution, so the resulting image quality is good in ...
Xiaomi Mi 11 Ultra with periscope telephoto lens (rectangular opening below the two lenses). This is a list of smartphones with a telephoto lens that offers a focal length (35mm equivalent) of at least 100mm or "4× optical zoom" with an imaging area equivalent to a 1/3.5″ or larger sensor.
The lens's magnification is the ratio of the image's apparent height to the object's actual height, correlating to the proportion of the distances from the image to the lens and the object to the lens. Moving the object nearer to the lens amplifies this effect, increasing magnification. [10]
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Fujifilm FinePix X100. This is a list of large sensor fixed-lens cameras, also known as premium compact cameras or high-end point-and-shoot cameras.These are digital cameras with a non-interchangeable lens and a 1.0‑type (“1‑inch”) image sensor or larger, excluding smartphones and camcorders.
Robert Capa in Spain using a Filmo 16 mm film camera in 1937. Hand-held camera or hand-held shooting is a filmmaking and video production technique in which a camera is held in the camera operator's hands as opposed to being mounted on a tripod or other base. Hand-held cameras are used because they are conveniently sized for travel and because ...