Sigma Press Release 16/03/04

Compact-Lightweight zoom lens for the “Four Thirds System (4/3 System)” Digital SLR Camera System standard.(2004.3.16)

18-50mm F3.5-5.6 DC

Sigma Corporation is pleased to announce the launch of the new 18-50mm F3.5-5.6 DC for the Four Thirds Digital SLR Camera System. This zoom lens was exclusively designed to suit the characteristics of digital SLR cameras. The image circle was designed to match the size of the image sensors of digital SLR cameras, and this produced a compact and lightweight lens. The use of aspherical lenses provides correction for various aberrations throughout the entire zoom range and produce high level of optical performance. 18-50mm F3.5-5.6 DC lens has a minimum focusing distance of 25cm (9.8in.) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.5.

* If Olympus E-1 digital cameras is used, the angle of view will be equal to 36-100mm focal length.

THE SPECIFICATIONS
*Focal Length :18-50mm *Minimum Aperture :F22 *Lens Construction :8 Elements in 8 Groups *Angle of View :62degree - 24.4degree *Number of Diaphragm Blades :7pcs *Minimum Focusing Distance :25cm (9.8in.) *Maximum Magnification :1:3.5 *Filter Size :58mm *Lens Hood :Bayonet Hood *Dimensions :Diameter 67.5mm (2.6in.)X Length 62mm (2.5in.) *Weight :250gr/8.7ounces

The appearance, specifications, and the like of the product are subject to change for improvement without notice.