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Canon NS (1939) New Standard. A Canon S without the slow shutter speeds. Canon J (1939) J stands for Junior a non-rangefinder model. Canon J II (1946) Similar if not the same as prewar cameras. Canon S (1946) Similar if not the same as prewar cameras. Canon S II (1946) A redesign with combined range finder and viewfinder functions – two windows.
A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves. The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of people or devices with ...
Lens controller. A lens controller is device that controls motorized photographic lens functions such as zoom, focus, and iris opening ( aperture ). [1] Lens controllers can be found in still camera photographic lenses and as stand-alone units in machine vision, remote sensing, optoelectronics systems, and security applications.
Webcam. A Logitech-branded webcam attached to a laptop. A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in video telephony, live streaming and social media, and security.
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The ability of a lens to resolve detail is usually determined by the quality of the lens, but is ultimately limited by diffraction.Light coming from a point source in the object diffracts through the lens aperture such that it forms a diffraction pattern in the image, which has a central spot and surrounding bright rings, separated by dark nulls; this pattern is known as an Airy pattern, and ...
July 10, 2024 at 11:22 AM. ASHTABULA, Ohio (AP) — The Coast Guard came to the rescue of five people who were clinging to a cooler in Lake Erie after their boat was swamped by a wave far off the ...
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