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An aspheric biconvex lens. An aspheric lens or asphere (often labeled ASPH on eye pieces) is a lens whose surface profiles are not portions of a sphere or cylinder.In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.
An aspheric biconvex lens. Cylindrical lenses have curvature along only one axis. They are used to focus light into a line, or to convert the elliptical light from a laser diode into a round beam. They are also used in motion picture anamorphic lenses. Aspheric lenses have at least one
Different kinds of camera lenses, including wide angle, telephoto and speciality. A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
In lens systems, aberrations can be minimized using combinations of convex and concave lenses, or by using aspheric lenses or aplanatic lenses. Lens systems with aberration correction are usually designed by numerical ray tracing. For simple designs, one can sometimes analytically calculate parameters that minimize spherical aberration.
On August 23, 2018, Nikon announced the first three lenses for the Z-mount, one of which was the Nikkor Z 24-70 mm f /4 S (along with the Nikkor Z 35 mm f /1.8 S and Nikkor Z 50 mm f /1.8 S). [2] [3] The lens has a retractable design, making it more compact when not in use. The lens comes with a bayonet-type lens hood (HB-85).
On August 23, 2018, Nikon announced the first three lenses for the Z-mount, one of which was the Nikkor Z 35 mm f /1.8 S (along with the Nikkor Z 24-70 mm f /4 S and Nikkor Z 50 mm f /1.8 S). [ 2 ] [ 3 ] The lens comes with a bayonet-type lens hood (HB-89).