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2. Lens - Wikipedia

   en.wikipedia.org/wiki/Lens

   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.

3. List of longest smartphone telephoto lenses - Wikipedia

   en.wikipedia.org/wiki/List_of_longest_smartphone...

   Xiaomi Mi 11 Ultra with periscope telephoto lens (rectangular opening below the two lenses). This is a list of smartphones with a telephoto lens that offers a focal length (35mm equivalent) of at least 100mm or "4× optical zoom" with an imaging area equivalent to a 1/3.5″ or larger sensor.

4. 2020 United States presidential election - Wikipedia

   en.wikipedia.org/wiki/2020_United_States...

   The 2020 United States presidential election was the 59th quadrennial presidential election, held on Tuesday, November 3, 2020. [a] The Democratic ticket of former vice president Joe Biden and the junior U.S. senator from California Kamala Harris defeated the incumbent Republican president, Donald Trump, and vice president, Mike Pence. [9]

5. Contact (1997 American film) - Wikipedia

   en.wikipedia.org/wiki/Contact_(1997_American_film)

   Contact was released on LaserDisc, VHS and the (then new) DVD format in December 1997. Among the special features are three audio commentaries: by director Zemeckis and producer Starkey, by visual effects supervisors Ken Ralston and Stephen Rosenbaum, and by star Jodie Foster. [34] Contact was released on Blu-ray Disc on October 6, 2009 ...

6. Toric lens - Wikipedia

   en.wikipedia.org/wiki/Toric_lens

   A torus results when a circle with radius r rotates around an axis lying in the same plane as the circle (here the z axis) at a distance R from the centre of the circle.. A torus is the surface of revolution resulting when a circle with radius r rotates around an axis lying within the same plane as the circle, at a distance R from the circle's centre (see figure at right).

7. List of Sony E-mount lenses - Wikipedia

   en.wikipedia.org/wiki/List_of_Sony_E-mount_lenses

   Sony released the following SEL (for: Sony E-mount Lens) lenses for Sony E-mount cameras since 2010. They are also compatible with Hasselblad E-mount cameras. Some of the lenses introduced into the line have been developed in cooperation with Carl Zeiss (as indicated).