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  2. Polarizing filter (photography) - Wikipedia

    en.wikipedia.org/wiki/Polarizing_filter...

    A polarizing filter or polarising filter (see spelling differences) is a filter that is often placed in front of a camera lens in photography in order to darken skies, manage reflections, or suppress glare from the surface of lakes or the sea. Since reflections (and sky-light) tend to be at least partially linearly-polarized, a linear polarizer ...

  3. Photographic filter - Wikipedia

    en.wikipedia.org/wiki/Photographic_filter

    From Wikipedia, the free encyclopedia. Camera accessory consisting of an optical filter. Four photographic filters (clockwise from top-left): an infrared hot mirrorfilter, a polarizing filter, and a UV filter. The larger filter is a polarizerfor Cokin-style filter mounts. In photographyand cinematography, a filteris a cameraaccessory consisting ...

  4. Filter (social media) - Wikipedia

    en.wikipedia.org/wiki/Filter_(social_media)

    A photograph with two plush vegetables, before and after applying a filter. Filters are digital image effects often used on social media. They initially simulated the effects of camera filters, and they have since developed with facial recognition technology and computer-generated augmented reality. Social media filters—especially beauty ...

  5. Infrared photography - Wikipedia

    en.wikipedia.org/wiki/Infrared_photography

    Taken from a passenger airplane within seconds apart using a Sony H-9 Digital camera. In infrared photography, the photographic film or image sensor used is sensitive to infrared light. The part of the spectrum used is referred to as near-infrared to distinguish it from far-infrared, which is the domain of thermal imaging.

  6. Infrared cut-off filter - Wikipedia

    en.wikipedia.org/wiki/Infrared_cut-off_filter

    Infrared Color Photography Mahatma Gandhi. Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near- infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating.

  7. Full-spectrum photography - Wikipedia

    en.wikipedia.org/wiki/Full-spectrum_photography

    Full-spectrum photography is a subset of multispectral imaging, defined among photography enthusiasts as imaging with consumer cameras the full, broad spectrum of a film or camera sensor bandwidth. In practice, specialized broadband/full-spectrum film captures visible and near infrared light, commonly referred to as the "VNIR".

  8. Wratten number - Wikipedia

    en.wikipedia.org/wiki/Wratten_number

    Wratten number. Wratten numbers are a labeling system for optical filters, usually for photographic use comprising a number sometimes followed by a letter. The number denotes the color of the filter and its spectral characteristics, and these numbers can be grouped into broad categories, but the numbering system is arbitrary within a group and ...

  9. List of photographic equipment makers - Wikipedia

    en.wikipedia.org/wiki/List_of_photographic...

    Keystone (126 and 110 cameras with built-in flash, movie cameras) Kiron Lenses. Konica. Konishiroku (see Konica Minolta) Konica Minolta (as of 2006 may still manufacture on an OEM basis for Sony) Leitz (formerly owned Leica) Leidolf. Lord see Okaya.

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