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Sigma 100-300mm F4 DG SLR Lens -- A Prolific product From Sigma

Sigma has been the unique choice for the world-wide photographers since it answers every question for the qualities expected with cameras and lenses. Sigma strikes the market with each one of its products with a big impact. One of the Sigma products, making sensual waves among the photographers, is this Sigma 100-300mm F4 DG SLR Lens This lens is suitable for medium to long range telephoto cameras. This lens belongs to the Sigma's EX range family and it has a non-reflective black finish along with white blend and it looks sporty. The quality of the outer body of this lens is wonderful since it made of highly resistive metal. The lens has been made to be compatible with Sigma's EX Tele-converters too.

The specification of this lens itself speaks about the quality of this lens and what it is capable of. This lens has been constructed with 16 elements of 14 different groups. It features 100 to 300 mm focal length with the minimum focus of objects at a distance of 1.8 meters. This lens has been designed with a maximum aperture of f/4 and minimum aperture of f/32 and it has a filter size of 82mm which helps the lens to retain the same length without rotating the front element, while focusing and zooming. This lens has been made with new digital coating Sigma which acts as an anti-reflection coating and hence it helps photographers in improving the image contrast. This lens weighs about 1.44 kg. Though it is somewhat heavy, it is well balanced to suit all cameras.

This lens has been provided with an Auto Focus and Manual Focus switch as in every other Sigma lenses and the lens has a tripod collar which is a special feature in this lens. The Auto focus mode is controlled by a HSM, which is a hypersonic technology from Sigma and it enables the operation without any noise. It also has a 35mm wide zoom ring which has been marked with different mm points.

The key features, which make this lens as the choice of every photographer, are its constant aperture and its ability to operate in faster way and also its quiet operation while auto-focusing. The Special Low Dispersion glass elements which are used in the construction of this Sigma 100-300mm F4 DG SLR Lens is also another important aspect while speaking about the success of this lens. On the whole this lens is an excellent one for photography lovers.

dBal
Sun, 07 Feb 2010 03:27:45 +0000

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