Ati mobility radeon hd5730.


Ati mobility radeon hd5730





Ati mobility radeon hd5730.


Sigma Expands Multiple Lens Compatibility

Sigma’s range of lenses has expanded with the release of several new variants of already known models. In particular, the company introduced a wide-angle zoom 10-20mm F4-5.6 EX DC HSM and APO 70-200mm F2 lens.8 II EX DG MACRO HSM 4/3 version. The second of the named models and the APO 50-150mm F2 lens.8 II EX DC HSM also available in Pentax and Sony mounts. Finally, a new modification of the APO 70-300mm F4-5 model.6 DG MACRO is designed for use with Nikon cameras.

Lens 10-20mm F4-5.6 EX DC HSM (top image) for DSLRs categorized as ultra wide-angle lenses. It provides a viewing angle of 94.5?-56.8?. Low dispersion glass elements and aspherical lenses are incorporated to reduce distortion. Fast and quiet focusing is provided by an ultrasonic drive.

Fast APO 70-200mm F2 lens.8 II EX DG MACRO HSM (second shot) covers a wide range of focal lengths and enables macro photography at a minimum focusing distance of 1 m (maximum magnification is 1: 3.5). The optical design of the lens includes elements made of glass with low and ultra-low dispersion. Like the previous model, the lens is equipped with an ultrasonic focusing drive.

APO 50-150mm F2 Lens.8 II EX DC HSM (third shot) exclusively for digital SLR cameras. Among the distinctive features of this model, the manufacturer notes a universal range of focal lengths, a high constant aperture and the use of a new, ultra-multilayer coating of elements.

Model APO 70-300mm F4-5.6 DG MACRO is equipped with an autofocus motor, which makes it possible to use the lens with any Nikon cameras, including the D40, D40x and D60. The lens provides a maximum magnification of 1: 2 at a focal length of 300 mm and has ED glass elements in its optical system. Recall that a lens similar in focal length and aperture, which is also of interest to owners of Nikon D40, D40x and D60 cameras due to the presence of a built-in focusing drive, was recently released by Tamron.

Source: Sigma

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