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  2. History of photographic lens design - Wikipedia

    en.wikipedia.org/wiki/History_of_photographic...

    Some lenses were marked by T-stops (transmission stops) instead of f-stops to indicate the light losses. [198] T-stops were "true" or effective aperture stops and were common for motion picture lenses, [9]: 349–350 so that a cinematographer could ensure that consistent exposures were made by all the different lenses used to make a movie. This ...

  3. Terry stop - Wikipedia

    en.wikipedia.org/wiki/Terry_stop

    When police stop and search a pedestrian, this is commonly known as a stop and frisk. When police stop an automobile, this is known as a traffic stop. If the police stop a motor vehicle on minor infringements in order to investigate other suspected criminal activity, this is known as a pretextual stop. Additional rules apply to stops that occur ...

  4. Photo-text art - Wikipedia

    en.wikipedia.org/wiki/Photo-text_art

    Photo-text, also written as photo/text, is a hybrid form of artistic expression that combines photography and textual elements to convey a message or create a narrative. This combination allows for a multi-dimensional experience for the viewer.

  5. Driving while black - Wikipedia

    en.wikipedia.org/wiki/Driving_while_black

    In a pretextual stop (also called an investigatory stop), officers pull over people citing a minor issue, then start asking unrelated questions. University of Kansas professor Charles Epp in a study found that black drivers were three times more likely than whites to be subjected to "pretextual" stops, and five times more likely to be searched ...

  6. Photography - Wikipedia

    en.wikipedia.org/wiki/Photography

    This is an accepted version of this page This is the latest accepted revision, reviewed on 27 January 2025. Art and practice of creating images by recording light For other uses, see Photography (disambiguation). Photography of Sierra Nevada Photography is the art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically ...

  7. Zone System - Wikipedia

    en.wikipedia.org/wiki/Zone_System

    The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer. [1] Adams described the Zone System as "[...] not an invention of mine; it is a codification of the principles of sensitometry, worked out by Fred Archer and myself at the Art Center School in Los Angeles, around 1939–40."

  8. LAPD considering new limits on 'pretextual stops'; police ...

    www.aol.com/news/lapd-considering-limits...

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  9. Straight photography - Wikipedia

    en.wikipedia.org/wiki/Straight_photography

    With the emerging West Coast Movement, photography no longer imitated painting and developed as a separate art form. The new movement spread in the 1950s as the West Coast artists championed the use of natural environmental forms and clarity of detail—very novel concepts at the time.