Sigma 18 - 200 mm DC lens
Feb 14, 2005 at 00:05 GMT
Pre-PMA 2005: Sigma has today announced the new 18 - 200 mm F3.5 - F6.3 DC lens, this lens along with the two other new lenses announced today is designed specifically for digital SLR's with APS-C sized sensors (1.5x FOV crop or more), these are smaller and lighter than the equivalent 35 mm lens as they don't need to produce such as large an imaging circle. This new eleven times zoom lens although a little slow at telephoto (F6.3) would offer an impressive 27 - 300 mm equiv. on a 1.5x FOV crop camera (such as the Nikon D70).
Sigma 18-200mm F3.5-6.3 DC
Compact, Lightweight Superzoom lens, with high zoom ratio 11:1
- Exclusively designed for use with digital Single Lens Reflex (SLR) cameras
- High zoom ratio 11:1
- 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
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 enables 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 ghost, which is a common problem of digital cameras and also creates an optimum color 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 polarizing 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.
|Focal Length||18 - 200 mm|
|Lens Construction||15 Elements in 13 Groups|
|Angle of View||69.3° - 7.1°|
|Number of Diaphragm Blades||7 pieces|
|Minimum Focus Distance||45 cm (17.7 in)|
|Filter Size||62 mm|
|Lens Hood||Petal Hood|
|Dimensions (dia x len)||70 mm (2.8 in) x 78.1 mm (3.1 in)|
|Weight||405 g (14.3 oz)|
|Lens mounts||Canon, Sigma, Nikon, Pentax|