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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]
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 ] .
Field curvature: the image "plane" (the arc) deviates from a flat surface (the vertical line). Petzval field curvature, named for Joseph Petzval, [1] describes the optical aberration in which a flat object normal to the optical axis (or a non-flat object past the hyperfocal distance) cannot be brought properly into focus on a flat image plane.
Headlamp Tikka XP made by Petzl Headlamp Petzl e+Lite. Petzl is a French manufacturer of climbing gear, caving gear, work-at-height equipment, and headlamps based in Crolles (near Grenoble), France. [1] The company was created by the cave explorer Fernand Petzl in the mid-1970s. Their three specialties are:
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.
Billingham Bags (M Billingham & Co Ltd) was founded in 1973 by Martin Billingham, [2] and is still owned and run by the Billingham family. Originally a manufacturer of fishing bags, in 1978 Billingham discovered that a large number of their bags were being sold to a photographer in New York City.