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Nikon Small World (Nikon's Small World) is a photographic contest run by Nikon Instruments and a forum for showcasing the beauty and complexity of life as seen through the light microscope. [1] It serves as a window into a world that can only be seen through the lens of an optical microscope. The contest comprises two separate competitions:
Nikon launched the Optiphot and Labophot microscopes in the 1970's and established the CF Optical system. In the 1980's, they released 80 new products, including the inverted Diaphot microscope, which was used in IVF techniques. The introduction of the Eclipse range of infinity optics in the 1990's was a departure from traditional microscope ...
Two Leica oil immersion microscope objective lenses; left 100×, right 40×. The objective lens of a microscope is the one at the bottom near the sample. At its simplest, it is a very high-powered magnifying glass, with very short focal length. This is brought very close to the specimen being examined so that the light from the specimen comes ...
Nikon originally reserved the Nikkor designation for its highest-quality imaging optics, but in recent history almost all Nikon lenses are so branded. Notable Nikkor branded optics have included: F-mount lenses for 35mm SLR and DSLR photography (for a full list see Nikon F-mount). Z-mount lenses for Nikon mirrorless cameras. 1-mount lenses for ...
A couple of later Minolta lenses do have a built-in ultrasonic focus motor (SSM lenses), like other SLR and DSLR systems (i.e. Canon and Nikon), where the AF computer is inside the camera body and there is a digital interface connecting body to an electric motor and the focusing gears built into the lens body.
Many zoom lenses, particularly in the case of fixed-lens cameras, are actually varifocal lenses, which gives lens designers more flexibility in optical design trade-offs (e.g., focal length range, maximal aperture, size, weight, cost) than parfocal zoom, which is practical because of auto-focus, and because the camera processor can ...