The first has the OS (Optical Stabilizer) function

Sep 27, 2006 08:24 GMT  ·  By

Additionally to the SD14 and the four lenses for the four thirds system, Sigma also has two lenses for the rest of the systems (Canon, Pentax, Nikon, Sigma and Sony).

The first is the 18-200mm F3.5-6.3 DC OS lens, designed for digital SLR cameras and capable of covering a wide range of focal lengths from wide angle to telephoto.

It is equipped with Sigma's own unique technology 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.

It automatically detects the movement of the camera and compensates for camera shake when shooting moving subjects such as in the case of motor sports.

Two SLD (Special Low Dispersion) glass elements and two aspherical lenses provide excellent correction for all types of aberrations. The super multi-layer lens coating reduces flare and ghosting. This lens provides superior image quality throughout the entire zoom range. An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using circular polarizing filters and the petal-type lens hood supplied.

The second lens is the 18-50mm F2.8 EX DC Macro lens, which 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.

Especially designed to suit the characteristics of digital SLR cameras, this lens provides a high level of optical performance. Its design incorporates both glass-mold and hybrid aspherical lens technology, which offers superior peripheral brightness, extremely high image quality, as well as a compact and lightweight construction.

Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of color aberrations. The super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras. High image quality is ensured throughout the entire zoom range.

An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarizing filters.

Photo Gallery (2 Images)

Open gallery