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A USAF 1951 resolution chart in PDF format is provided by Yoshihiko Takinami. This chart should be printed such that the side of the square of the 1st element of the group -2 should be 10 mm long. USAF 1951 Resolution Target Further explanations and examples; Koren 2003: Norman Koren's updated resolution chart better suited for computer analysis
With the development of lower-cost endpoints, the integration of video cameras into personal computers and mobile devices, and software applications such as FaceTime, Skype, Teams, BlueJeans and Zoom, videoconferencing has changed from just a business-to-business offering to include business-to-consumer (and consumer-to-consumer) use.
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Philips attempted to buy out the ailing Pye in 1966. The Minister of Technology Tony Benn determined that a complete sale would create a de facto monopoly so he permitted the transfer of only a 60% shareholding, with an undertaking that the Lowestoft factory would continue to manufacture televisions.
The first Sony camcorder capable of recording to standard 8mm videotape was the Sony CCD-V8, with 6x zoom but only manual focus, released in 1985 with an MSRP of approximately $1,175, [8] ($3,329 in 2023) and a mass of 1.97 kg (4.3 lb). [9] [10] The same year, Sony released the CCD-V8AF which added autofocus. [9]
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Guide number distances are always measured from the flash device to the subject; if the flash device is detached from the camera, the position of the camera is irrelevant. Furthermore, unless a flash device has an automatic zoom feature that follows the setting of a camera's zoom lens, guide numbers do not vary with the focal length of lenses.
Note that producers whose only presence in the photo industry at any time has been the manufacture of digital cameras (Logitech, for example, which has made Webcams) are listed separately on the List of digital camera brands.