Nikon’s launch of their D40 & D40x was a sneaky and clever tactic to try and lock first time digital SLR buyers into the Nikon original stable of lenses, but it was only going to be a matter of time before the independent lens manufacturers caught up.
Today Sigma announced the 18-200mm DC (the non OS – Optical Stabilized version) with an internal focusing motor so as to work on the Nikon D40 series, a move all were expecting following Tamron’s announcement a few weeks ago to do the same with their amazing 18-250mm. The following is Sigma’s official press release:
11.1x high zoom ratio lens with a built-in AF motor allowing autofocus with all Nikon APS-C DSLR cameras.
18-200mm F3.5-6.3 DC for Nikon
The Sigma Corporation is pleased to announce the launch of the new 18-200mm F3.5-6.3 DC for Nikon. This high zoom ration lens, designed exclusively for digital SLR cameras, covers wide angle to telephoto. The built-in motor is capable of autofocusing with all Nikon DSLR cameras. Two SLD (Special Low Dispersion) lenses and two Aspherical glass elements provide excellent correction for all types of aberration. Sigma’s super multi-layer coating reduces flare and ghosting and provides high image quality throughout the zoom range. The compact and lightweight construction of 70mm (2.8″) in diameter, 75.6mm (3.0″) in length and 395g / 13.9oz makes it ideal for field work. This lens has a minimum focusing distance of 45cm (17.7″) and a maximum magnification of 1:4.4. An inner focusing system also eliminates front lens rotation, making the lens particularly suitable for using the petal lens hood and circular polarizing filters. A zoom lock switch mechanism is provided to prevent the lens from creeping due to its own weight.
* Vignetting will occur if the lens is used with 35mm SLR cameras, APS format film cameras or digital cameras with image sensors larger than APS-C size, including 5:4 and FX format of Nikon D3 camera.