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  2. Closed-circuit television camera - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television...

    A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves. The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of people or devices with ...

  3. Angle of view (photography) - Wikipedia

    en.wikipedia.org/wiki/Angle_of_view_(photography)

    So a standard 50 mm lens for 35 mm photography acts like a 50 mm standard "film" lens even on a professional digital SLR, but would act closer to a 75 mm (1.5×50 mm Nikon) or 80 mm lens (1.6×50mm Canon) on many mid-market DSLRs, and the 40-degree angle of view of a standard 50 mm lens on a film camera is equivalent to a 28–35 mm lens on ...

  4. Optics Software for Layout and Optimization - Wikipedia

    en.wikipedia.org/wiki/Optics_Software_for_Layout...

    Optics Software for Layout and Optimization. Optics Software for Layout and Optimization ( OSLO) is an optical design program originally developed at the University of Rochester in the 1970s. The first commercial version was produced in 1976 by Sinclair Optics. Since then, OSLO has been rewritten several times as computer technology has advanced.

  5. Lens speed - Wikipedia

    en.wikipedia.org/wiki/Lens_speed

    Lens speed. A fast prime (fixed focal length) lens, the Canon 50mm f/ 1.4 (left), and a slower zoom lens, the Canon 18–55mm f/ 3.5–5.6 (right); this lens is faster at 18mm than it is at 55mm. Lens speed is the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger than average maximum aperture (that is ...

  6. Download and install the AOL app on iOS - AOL Help

    help.aol.com/articles/aol-app-downloading-and...

    Learn more about the AOL app and download it from the App Store. The AOL app is available for iOS devices running iOS 12 or newer. 1. Open the App Store on your device. 2. Tap the Search icon. 3. Type "AOL" in the search field. 4.

  7. Exposure value - Wikipedia

    en.wikipedia.org/wiki/Exposure_value

    In photography, exposure value ( EV) is a number that represents a combination of a camera 's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV (for any fixed scene luminance ). Exposure value is also used to indicate an interval on the photographic exposure scale, with a difference of 1 EV ...

  8. Image sensor format - Wikipedia

    en.wikipedia.org/wiki/Image_sensor_format

    In digital photography, the image sensor format is the shape and size of the image sensor . The image sensor format of a digital camera determines the angle of view of a particular lens when used with a particular sensor. Because the image sensors in many digital cameras are smaller than the 24 mm × 36 mm image area of full-frame 35 mm cameras ...

  9. List of most-downloaded Google Play applications - Wikipedia

    en.wikipedia.org/wiki/List_of_most-downloaded...

    This is the list of the Google Play paid apps with more than 1 million and less than five million downloads on unique devices: BlockP app : Website, Apps and Porn Blocker. 505 Games Srl. My Boy! - GBA Emulator [ 496 ] 60 Seconds! Atomic Adventure [ 616 ]