B&H has the new Tamron 16-300mm f/3.5-6.3 Di II VC PZD MACRO lens in stock and shipping for Canon DSLRs right now. However, the Nikon and Sony versions of the lens are still on a pre-order list. You can find all of them here at B&H Photo.
Tamron has announced pricing and availability for its new 16-300mm f/3.5-6.3 DI II VC PZD MACRO lens. The lens follows the popular 18-270mm model, stretching the focal length at both ends of the zoom range for a 18.8x total zoom range. The new 16-300mm model retails for $629 and should be available mid-May (B&H says on May 15) and is available for pre-order for Canon, Nikon and Sony mounts. Check it out here at B&H Photo.