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A superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution depending on the illumination wavelength and the numerical aperture (NA) of the objective lens.
This is a list of lenses designed for APS-C mirrorless cameras that have an optical zoom ratio greater than 7×. For comparison, the longest superzoom lens designed for DSLRs was the Tamron 18-400mm F3.5-6.3 for EF and F mounts, which had a 22× optical zoom ratio.
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Sigma 18-200mm/3.5-6.3 DC lens attached to a Canon EOS 400D A Panasonic TZ18 compact digital camera's Leica lens with a maximum focal length of 384mm (35mm equiv.) and minimum of 24mm A superzoom or ultrazoom lens is a type of photographic zoom lens with unconventionally large focal length factors, typically ranging from wide angle to extreme ...
The super lens is a practical realization of this theory. It is a working lens that can capture images below the diffraction limit even though limitations occur due to the inefficiencies of conventional materials. This means that although there are losses, enough of an image is returned to show this work was a successful demonstration. [46]
The Sigma 50-500mm f / 4-6.3 EX DG HSM is a super-telephoto zoom lens produced by Sigma Corporation. It contains four SLD (Special Low Dispersion) glass elements to provide correction for chromatic aberration. It is aimed at advanced consumers.
A burning apparatus consisting of two biconvex lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.
Canon PowerShot SX720 HS. This is a list of superzoom compact cameras, also known as travel zoom cameras. [1] [2] These are small fixed-lens "point-and-shoot" digital cameras that have a high optical zoom ratio.