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Sigma 28-70mm F2.8-4 DG lens
Ilse Jurriën : September 18th 2005 - 22:20 CET
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SigmaSigma 28-70mm F2.8-4 DG lens : Sigma Corporation is pleased to announce the launch of the new 28-70 F2.8-4 DG lens. This compact, large aperture zoom lens is ideal for digital and 35mm SLR cameras. The new multi layer lens coating and lens design reduce flare and ghost, and also creates an optimum color balance through the entire zoom range. An aspherical lens element is used for excellent correction of distortion throughout the entire zoom range. This lens’ excellent performance makes it an ideal lens for Digital SLR Cameras as well as film SLR cameras. This standard zoom lens has a large aperture of F2.8 at 28mm focal length and yet it is compact and lightweight, with an overall length of 62.5mm (2.5”) and weight of 255g. (9oz.).
Sigma 28-70mm F2.8-4 DG lensSigma 28-700mm - Features
• Ideally suited for traveling, landscape photography and general photography.
• The new multi layer lens coating and lens design reduce flare and ghost
• High image quality with the use of Aspherical Lens element.
• Large aperture of F2.8 at 28mm focal length - overall length of 62.5mm (2.5”)
• The supplied zoom hood can be used to obtain a superior light-blocking effect.
• Supplied lens hood blocks out extraneous light.

Sigma 28-700mm f2.8-4 - Specification
• Focal Length : 28-70mm
• Minimum Aperture : F22
• Lens Construction : 11 Elements in 8 Groups
• Angle of View : 75.4 - 34.3degrees
• Number of Diaphragm Blades : 8pcs
• Minimum Focusing Distance : 50cm (19.7”)
• Maximum Magnification : 1:6.5
• Filter Size : 58mm
• Lens Hood : Bayonet Type Hood
• Dimensions : Diameter 67.5mm (2.6”) x Length 62.5mm (2.5”)
• Weight : 255gr / 9oz

About Sigma
∑ SIGMA is the Greek letter equivalent to the English letter "S." In mathematics, it's a sign used to show the total sum. For photographers everywhere, Sigma is the total sum of the research, development, manufacturing and service of the world's leading line of lenses and cameras. Sigma ensures a high, consistent level of quality by processing our own high-performance Special Low Dispersion glass (SLD), metal and resins, surface treatments and other elements right here inside the factory itself. Sigma coordinates the development, production and sales of its technology worldwide through an impressive network of offices in Japan, the United States, Germany, France, United Kingdom, the Benelux countries, Hong Kong and Singapore.

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