18-200mm f/3.5-6.3 DC added to Sigma's digital line-up

Compact, lightweight superzoom lens with high 1:11 zoom ratio

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Sigma 18-200 f/3.5-6.3 DCSigma's new 18-200 F3.5-6.3 DC lens. has a high zoom ratio lens and is exclusively designed for digital SLR cameras, being 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 travelling.

Specifications
Focal Length: 18-200mm
Minimum Aperture: f/23
Lens Construction: 15 Elements in 13 Groups
Angle of View: 69.3- 7.1
Number of Diaphragm Blades: 7 pcs
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

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