Sigma updates Nikon-mount 18-200mm zoom
Sigma Japan has announced an update to the Nikon-mount version of its 18-200mm zoom lens that was first announced at the 2005 PMA Spring tradeshow in Orlando, Florida. The original version of the lens had no built-in AF motor, instead relying on the focus motor built into Nikon DSLR camera bodies. However, Nikon's recent D40 and D40x digital SLRs don't include this in-body focu...
