objektiver

Objektiver is the Danish and Norwegian plural form of objektiv, the word used for a camera lens or telescope objective. In photography, videography, and astronomy, objekiver denotes the optical component that gathers and focuses light onto a sensor, film, or a telescope’s focal plane. The term is commonly used in Danish and Norwegian catalogs, manuals, and training materials to refer to lenses or objectives.

Lenses (objektiver) come in a variety of designs and uses. They are broadly categorized as prime lenses, which have a fixed focal length, and zoom lenses, which cover a range of focal lengths. By focal length, common groups include wide-angle, standard, telephoto, macro, and fisheye. Lenses also differ in speed, indicated by maximum aperture (for example, f/1.4 versus f/4); a larger maximum aperture generally allows better low-light performance and shallower depth of field. Other important features can include image stabilization, weather sealing, autofocus motor type, and optical coatings that reduce reflections and flare.

Mounts and compatibility are central considerations. Objektiver are designed for specific camera mounts (such as Canon EF, Nikon F, Sony E, or Micro Four Thirds). Adapters exist to mount lenses on different bodies, but may affect autofocus performance, metering, or stabilization. Choice of lens also interacts with sensor size and crop factor, influencing effective field of view.

Market usage and terminology. In Danish and Norwegian, objektiver are essential terms in product listings, reviews, and educational materials about photography and astronomy. The term can also appear in broader contexts referring to telescope objectives. Notable brands and third-party manufacturers offer a wide range of objektiver to suit different systems, budgets, and applications. See also: lens, optics, camera lens.