Take a good look at the new Tamron 18-400mm f/3.5-6.3 Di II VC HLD. This video review was done on one of the latest high-end APS-C DSLR cameras. The guys at the Pixel Connection took the lens out to the park for a hands on experience.
The Lens basic info:
The Tamron 18-400mm F/3.5-6.3 Di II VC HLD is an Super-wide-angle to medium telephoto zoom lens designed for APS-C crop sensor DSLRs. It brings a 35mm focal range of 28.8-640mm and show off such as a new HLD (High/Low torque-modulated Drive) focus motor for fast and quiet AF operation, full-time Manual Focus override, Tamron’s exclusive VC (Vibration Compensation) technology to combat motion blur (which corrects for up to 2.5 stops of camera shake), moisture resistant construction, and a 45cm minimum focus distance and a maximum reproduction ratio of 1:2.9. The Tamron 16-400mm F/3.5-6.3 Di II VC PZD costs $649 and is available in Canon and Nikon mounts.
The Tamron 18-400mm F/3.5-6.3 Di II VC HLD features a new HLD (High/Low torque-modulated Drive) that allows near-silent auto-focusing. Mainly, this setup allows instant manual override even when the focus mode switch is in the AF position.
If you need an all-in-one lens that covers most ground from wide-angle to super close-ups, and come with the added bonus of tele-macro shooting too, the Tamron 18-400mm F/3.5-6.3 Di II VC HLD will give you what you need.
Lens Tech Specifications:
Focal Length 18-400mm
Maximum Aperture F/3.5-6.3
Angle of View (diagonal) 75°33′ – 4°
(for APS-C format)
Optical Construction 16 elements in 11 groups
Minimum Object Distance* 0.45m (17.7 in)
Maximum Magnification Ratio 1:2.9
Filter Size ?72mm
Maximum Diameter ?79mm
Length** 123.9mm (4.9 in) Canon
121.4mm (4.8 in) Nikon
Weight 710g (25 oz) Canon
705g (24.9 oz) Nikon
Aperture Blades 7 (circular diaphragm)
Minimum Aperture F/22-40
Image Stabilization Performance 2.5 Stops
Standard Accessories Flower-shaped lens hood, Lens caps
Compatible Mounts Canon, Nikon