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  2. Stud finder - Wikipedia

    en.wikipedia.org/wiki/Stud_finder

    A stud finder (also stud detector or stud sensor) is a handheld device used with wood buildings to locate framing studs located behind the final walling surface, usually drywall. While there are many different stud finders available, most fall into two main categories: magnetic stud detectors and electric stud finders.

  3. Rec. 2020 - Wikipedia

    en.wikipedia.org/wiki/Rec._2020

    ITU-R Recommendation BT.2020, more commonly known by the abbreviations Rec. 2020 or BT.2020, defines various aspects of ultra-high-definition television (UHDTV) with standard dynamic range (SDR) and wide color gamut (WCG), including picture resolutions, frame rates with progressive scan, bit depths, color primaries, RGB and luma-chroma color representations, chroma subsamplings, and an opto ...

  4. Director's viewfinder - Wikipedia

    en.wikipedia.org/wiki/Director's_viewfinder

    Lens finders are camera format specific and require the lenses that will be used in production. They can only be viewed by one individual at a time. Variations exist for different lens mounting systems, most typically Arri PL , Arri LPL, Panavision PV mount , Panavision SP70 and Mitchell BNCR mounts .

  5. Universal Media Disc - Wikipedia

    en.wikipedia.org/wiki/Universal_Media_Disc

    In late 2009, Sony began pushing developers away from the UMD format and towards digital distribution on the PlayStation Network in preparation for the launch of the digital-download-only PSP Go, which was the first (and only) PSP model to not include a UMD drive. [13]

  6. Solar road stud - Wikipedia

    en.wikipedia.org/wiki/Solar_road_stud

    Solar road stud. Solar road studs are flashing solar cell powered LED low-maintenance lighting devices that delineate road edges and centrelines. Embedded in the road surface, they are an electronic improvement on the traditional cat's eyes [1] and raised pavement marker in that they may give drivers a larger reaction window.

  7. Leica M3 - Wikipedia

    en.wikipedia.org/wiki/Leica_M3

    The M3 introduced several features to the Leica, among them the combination of viewfinder and rangefinder in one bright window, like on the Contax II, a bayonet lens mount, and rapid film advance lever. It was the most successful model of the M series, with over 220,000 units sold by the time production of the M3 model ended in 1967.

  8. Silicon controlled rectifier - Wikipedia

    en.wikipedia.org/wiki/Silicon_controlled_rectifier

    SCR 4-layer (p-n-p-n) diagram. A silicon controlled rectifier or semiconductor controlled rectifier is a four-layer solid-state current-controlling device.The name "silicon controlled rectifier" is General Electric's trade name for a type of thyristor.