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One of the favorite lenses among news photographers, a 70-200mm f/2.8 or 80-200mm f/2.8 zoom also appeals to many serious photo enthusiasts. Although large and heavy, lenses of this type offer several benefits. Their very wide maximum aperture allows for faster shutter speeds than the more typical f/4.5-5.6 zooms, great for low-light or action photography at lower ISOs (film or digital) for images with less grain or noise. Since these are professional-caliber zooms, they’re also particularly rugged and boast several high-tech optical elements for high quality even at wide apertures…

The Sigma Corporation is pleased to announce the launch of the new, groundbreaking Sigma DP1 compact digital camera featuring a 14 megapixel FOVEON X3 direct image sensor (2652 × 1768 × 3 layers) as used in the Sigma SD14 digital SLR. The image sensor uses three silicon embedded layers of photo sensors, stacked to take advantage of silicon’s ability to absorb red, green and blue light at different respective depths. 

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The Sigma Corporation is please to announce the new 18-200mm F3.5-6.3 DC OS lens. This high zoom ratio lens is exclusively designed for digital SLR cameras and is capable of covering a wide range of focal lengths from wide angle to telephoto. It is equipped with Sigma’s own unique OS (Optical Stabilizer) function. This function uses two sensors inside the lens to detect vertical and horizontal movement of the camera and works by moving an optical image stabilizing lens group, to effectively compensate for camera shake.

Sigma today announced the new 18-50mm F2.8 EX DC Macro lens designed exclusively for Digital SLR’s using the four-thirds mount. This lens has a large aperture of F2.8 throughout the entire zoom range. A minimum focusing distance of 20cm (7.9") and a maximum magnification of 1:3, makes it ideal for close-up photography.