Lens Tamron
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Intraocular lens - An intraocular lens (IOL) is an implanted lens in the eye, usually replacing the existing crystalline lens because it has been clouded over by a cataract, or as an alternative to refractive surgery when this procedure is contraindicated. It usually consists of a plastic lens with plastic side struts, ...
Luneberg lens - A Luneberg lens is a spherically symmetric, variable-index refracting structure which will form perfect geometrical images of two given concentric spheres onto each other. The Luneberg lens is a spherical lens (usually a ball lens) generally having a gradient of decreasing refractive index n radially out from its center.
Wide-angle lens - In photography and cinematography, a wide-angle lens is a lens whose focal length is shorter than the focal length of a normal lens. For a 35 mm camera with a 36 mm by 24 mm format, the normal lens is 50 mm.
Canon EF 28-135mm lens - The Canon EF 28-135mm lens is a standard zoom lens with image stabilization (IS) technology and a high zoom ratio made by Canon. The lens is based on the EF Lens Mount and will work with all film and digital EOS cameras that support this mount.
Lens Comparison Tests - Lens Comparison Tests Visual lens comparison tests of several Canon EF, Tamron, and Hexanon lenses.
Tamron - Tamron Lens and equipment manufacturer
