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  2. Rectilinear lens - Wikipedia

    en.wikipedia.org/wiki/Rectilinear_lens

    (a digital camera with an image sensor which size is similar to 35 mm film in film cameras as the standard film camera format) [2] The vast majority of video and still cameras use lenses that produce nearly rectilinear images. A popular alternative type of lens is a fisheye lens which produces a distinctly curvilinear, wide-angled result.

  3. List of omnidirectional (360-degree) cameras - Wikipedia

    en.wikipedia.org/wiki/List_of_omnidirectional...

    All-in-one omnidirectional cameras Brand Model Release year Camera design Lens # Photo resolution Video support Video specification Size(WHD,mm) Weight(g) Remark Panono: Panono [1] 2011: 36 lens separated: 36: 16384 x 8192: No: N/A: Φ110: 480: Raw camera data is processed by Panono cloud to generate 360 image. Panox: Panox V2 [2] 2024 ...

  4. Fisheye lens - Wikipedia

    en.wikipedia.org/wiki/Fisheye_lens

    Many personal weather station online cameras around the world upload fisheye images of the current local sky conditions as well as a previous day time-lapse sequence with climate conditions such as temperature, humidity, wind and rainfall amounts. [76] In door's peepholes, to allow the viewer inside to see a wider view from the outside.

  5. Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_4.5mm_f/2.8_EX_DC...

    It is a circular fisheye lens, designed to project a 180-degree field of view in all directions onto a circular image. It is the first such lens to provide the complete circular fisheye effect on crop factor digital SLR cameras, which do not have a full 36x24mm sensor. [1] This lens is available in Canon, Nikon, Sigma, Pentax and Sony mounts.

  6. Sigma 8mm f/4 EX DG lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_8mm_f/4_EX_DG_lens

    Features; Unique features: circular fisheye: Physical; Filter diameter: rear (Gelatin filter) Angle of view; ... It is a circular fisheye lens for full-frame cameras, ...

  7. Hikvision - Wikipedia

    en.wikipedia.org/wiki/Hikvision

    In May 2017, seven series of Hikvision cameras were affected by an improper authentication vulnerability which, if exploited, could allow "a malicious attacker [to] escalat[e] his or her privileges or assum[e] the identity of an authenticated user and [obtain] sensitive data," according to the U.S. Cybersecurity and Infrastructure Security Agency.