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The Petzval objective, or Petzval lens, is the first photographic portrait objective lens (with a 160 mm focal length) in the history of photography. [1] It was developed by the Slovak mathematics professor Joseph Petzval in 1840 in Vienna , [ 2 ] with technical advice provided by Peter Wilhelm Friedrich von Voigtländer [ de ] .
This category is for YouTubers who publish video reviews about films, music, video games, etc. Pages in category "YouTube critics and reviewers" The following 55 pages are in this category, out of 55 total.
A camera bag. Camera bags are a 20th-century development for the convenient carrying and quick access to high-end camera equipment. They replaced fitted leather cases that were supplied with the earliest cameras. [1] In the 1970s, war and documentary photographers used fishing bags made by English companies Brady and Billingham. [2]
Madison Strawberry Garden Mini Camera Bag. $87 $279 Save $192. See at Kate Spade Outlet. Madison Colorblock East West Laptop Tote. $159 $499 Save $340. See at Kate Spade Outlet. Harper Satchel.
As of 2001, Petzl had approximately 600 products. [4] Later in 2002, the QUARK ERGO was developed and designed to be the first leashless, angled ice axe. [2] In 2004, Petzl's first fall arrest device for work at height was developed. In 2006, the Petzl corporation introduced new general director Pascal Bonino, and the Petzl Foundation was also ...
An Axis 2100 Network Camera, released in 1999. An AXIS P3717-PLE Network Camera, manufactured in 2019, has four adjustable camera heads enabling 360-degree coverage of an area. [41] Body Cameras – In 2020, Axis Communications entered the body camera market, competing with market incumbents Axon, Digital Ally, Wolfcom and Motorola Solutions ...
The Slingshot range is aimed at professional news and sports photographers, [6] providing easy access to cameras for rapid shooting; CNet found the SlingShot 300 AW Camera Bag offered good protection and easy access. [7] The FastPack is a rucksack-style range, which CNet found less refined. [8] Other products include bags for drones and laptops.
Vidicon tube 2 ⁄ 3 inch (17 mm) in diameter A display of numerous video camera tubes from the 1930s and 1940s, photographed in 1954, with iconoscope inventor Vladimir K. Zworykin. Video camera tubes are devices based on the cathode-ray tube that were used in television cameras to capture television images, prior to the introduction of charge ...