New 70-200mm f2.8 Lens From Tamron

Tamron Press Release - Tamron has announced the development of the SP AF70-200mm F/2.8 Di LD (IF) MACRO, a lightweight, high-performance and fast tele-zoom lens designed for SLR cameras with full-size image sensors. The new SP AF70-200mm Di LD (IF) MACRO (Model AA001) is an F/2.8 fast tele-zoom designed for full-size format SLR cameras. It inherits the product concept of the award-winning SP AF28-75mm F/2.8 XR Di standard zoom lens that is highly acclaimed for its compactness and speed, which lets photographers enjoy a high cost to performance uniqueness. The lens is supplied with a lightweight and rigid aluminum tripod grip ring that can be mounted or detached in a one-touch action.

While overall dimensions are confined to the absolute minimum, the new SP AF70-200mm F/2.8 Di LD (IF) MACRO zoom lens is packed with features that allow stress-free photography: a versatile MFD (minimum focusing distance) of just 0.95m (37.4”) over the entire zoom range; an excellent maximum macro magnification ratio of 1:3.1 at f=200mm; and an advantageous internal focusing (IF) system. The new tele-zoom lens enables the user to cover a desirable focal length range of 70mm medium telephoto to 200mm telephoto when mounted on full-size format SLR cameras and a focal length range from 109mm to 310mm equivalent ultra telephoto (7°59’ angle of view) when mounted on a DSLR camera with an APS-C sized imager.

This zoom lens, designed for use with full-size format SLR cameras, boasts a fast maximum aperture of F/2.8, yet it allows close-focusing down to 0.95m (37.4”) over the entire zoom range. The maximum magnification ratio is 1:3.1 at the 200mm tele-end. The filter diameter is confined to Ø77mm as a result of the use of an advanced optical design pursuing optical power distribution.

The models for Nikon and Canon cameras are equipped with AF/MF switchover mechanisms to allow one-touch switchover from AF mode to MF mode or vice versa electronically and mechanically by simply sliding the button. (Sony and Pentax systems require AF/MF switchover operation on both the camera and lens.) Since the lens uses an IF (internal focusing) system, the focusing ring does not rotate during focusing, which ensures good holding balance at all times. In the MF mode, focusing is performed as easily and comfortably as with an MF lens. Since the overall length of the lens does not change due to zooming or focusing, it offers excellent operability and holding balance. A flower-shaped lens hood is included as a standard accessory. The special hood provides optimum shading of superfluous light rays that enter from the rectangular frame outside the image field.
Image provided by Tamron.