Sigma AF 18-200mm f/3.5-6.3 DC OS (Optical Stabilizer) Zoom Lens for Nikon Digital SLR Cameras Expert Reviews

Sometimes we are joking about a hypothetical 18-300mm f/1.8 to meetall our photographic needs. Well, we aren't quite there yet nor will we eversee such a lens on a DSLR but the manufacturers are at least scratching thisfocal length range with some 18 ...

There's no such thing as a free lunch in lens land and the Sigma AF 18-200mm f/3.5-6.3 DCis no exception here. The resolution figures are generally quite decent and regarding theextreme zoom range you may accept the very pronounced distortions present ...