Sigma 28-105mm f/2.8-4 DG

(From Sigma lens literature) This standard zoom lens covers frequently used focal lengths from 28mm to 105mm and allows a large aperture of f/2.8 at the 28mm focal length. It is very convenient for a wide range of applications including snap shots, indoor photography. The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras. An ideal lens for Digital SLR Cameras as well as 35mm Film SLR Cameras.

The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras, and also creates an optimum color balance throughout the entire zoom range. This large aperture standard zoom lens provides superior performance both for Digital SLR Cameras and 35mm Film SLR Cameras.

This standard zoom lens allows a large aperture of f/2.8 at the 28mm focal length. It is very convenient for a wide range of applications including snap shots, indoor photography and photography with faster shutter speed.

The use of aspherical lens reduces various aberrations throughout the entire zoom range and improves optical performance. It also allows a large aperture of f/2.8 in a compact body.

This lens has minimum focusing distance of 50cm (19.7 inches) throughout the entire zoom range and it has also maximum magnification of 1:5.5.

Because the front of the lens does not rotate, circular polarizing filters and a petal-type hood can easily be used. An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood supplied and also circular polarizing filters.