diaphragm mirror

  • 41KABBALAH — This entry is arranged according to the following outline: introduction general notes terms used for kabbalah the historical development of the kabbalah the early beginnings of mysticism and esotericism apocalyptic esotericism and merkabah… …

    Encyclopedia of Judaism

  • 42Stuttering — Stutter redirects here. For other uses, see Stutter (disambiguation). Stammer redirects here. For other uses, see Stammer (disambiguation). Stuttering Classification and external resources ICD 10 F98.5 ICD …

    Wikipedia

  • 43navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.&#8230; …

    Universalium

  • 44Photography — is the art, science and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor or chemically by means of a light sensitive material such as photographic&#8230; …

    Wikipedia

  • 45Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …

    Wikipedia

  • 46Leica Camera — Coordinates: 50°32′35″N 008°23′25″E / 50.54306°N 8.39028°E / 50.54306; 8.39028 …

    Wikipedia

  • 47List of optical topics — Probably some Wikipedia articles on topics in optics are not yet listed on this page. If you cannot find the topic you are interested in on this page, the article may nonetheless exist; you can try to find it using the Search box, or look in and&#8230; …

    Wikipedia

  • 48Nikkormat — Nikomat Nikomat FT Type 35mm SLR camera Lens mount Nikon F mount Focus manual Exposure Man …

    Wikipedia

  • 49Panasonic Lumix DMC-GH1 — Panasonic DMC GH1K Type Micro Four Thirds System Sensor 17.3 × 13 mm Live MOS (in 4:3 aspect ratio) Maximum …

    Wikipedia

  • 50Index of optics articles — Optics is the branch of physics which involves the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it.[1] Optics usually describes the behavior of visible,&#8230; …

    Wikipedia