Sigma 18-200mm F3.5-6.3 DC Lens Announced

February 14, 2005 | Mark Goldstein | Lenses | Comment |

Sigma 18-200mm F3.5-6.3 DC LensSigma 18-200mm F3.5-6.3 DC lens is announced. Designed for use with digital SLR cameras, the 18-200mm F3.5-6.3 DC lens covers wide-angle to telephoto focal lengths and features an inner focusing system so that the front of the lens does not rotate. The Sigma 18-200mm F3.5-6.3 DC lens is available for Sigma, Canon, Nikon, and Pentax digital SLRs. Price and availability to be confirmed.

Sigma UK Press Release

Compact, Lightweight Superzoom lens with high zoom ratio 1:11

- Exclusively designed for use with digital Single Lens Reflex (SLR) cameras.
- High zoom ratio 1:11
- Compact and Lightweight construction with diameter of 70mm (2.8”), length of 78.1mm (3.1”) and weight of 405g./14.3oz.
- Minimum focusing distance of 45cm (17.7”) at all focal lengths

The Sigma Corporation is pleased to announce the launch of the new 18-200 F3.5-6.3 DC lens.

This high zoom ratio lens is exclusively designed for digital SLR cameras and capable of covering a wide range of focal lengths from wide-angle to telephoto. Two Special Low Dispersion (SLD) glass elements and two hybrid aspherical lenses offer the utmost correction for all types of aberrations, and enable this extended range super zoom lens to be housed in a compact and lightweight construction of 70mm (2.8”) diameter, and 78.1mm (3.1”) in length, and weighing just 405g/14.3oz. The new lens coating reduces flare and ghosting, which is a common problem with digital cameras and also creates an optimum colour balance. This lens has a minimum focusing distance of 45cm (17.7”) at all focal lengths and has maximum magnification of 1:4.4.

The lens design incorporates an inner focusing system, which prevents the front of the lens from rotating, making it particularly suitable for using circular polarising filters and petal shaped lens hoods. The overall length of the lens does not change during focusing, ensuring convenient handling and ease of use. A zoom lock switch eliminates ‘zoom creep’ during transportation, a convenient addition when traveling.

THE SPECIFICATIONS
Focal Length :18-200mm
Minimum Aperture :F22
Lens Construction :15 Elements in 13 Groups
Angle of View :69.3°- 7.1°
Number of Diaphragm Blades :7pcs
Minimum Focusing Distance :45cm (17.7”)
Maximum Magnification :1:4.4
Filter Size :62mm
Lens Hood : Petal Hood
Dimensions :Diameter 70mm (2.8”) x Length 78.1mm (3.1”)
Weight :405gr/14.3oz
Available fittings :Sigma AF
Canon AF
Nikon AF
Pentax AF

l The appearance and specifications are subject to change without notice.
l Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.