Tamron Launches SP AF28-75mm f/2.8 XR Di LD Aspherical (IF) Macro With Built-In AF Motor For Nikon

The award-winning SP AF28-75mm F/2.8 XR Di LD Aspherical (IF) MACRO zoom lens is a lightweight and compact standard zoom lens compatible with full-size SLR cameras and features a fast maximum aperture of F/2.8 that is constant over the entire zoom range. The lens enables users to enjoy the creative world of SLR photography by exploiting the attractive out-of-focus effect particular to fast maximum aperture lenses seen in portraiture or when using high shutter speeds.

MAIN FEATURES

Lightweight, fast standard zoom lens featuring Tamron’s proprietary XR technology
The optical system designed to optimize the power distribution within the system by the innovative employment of XR (high refractive index) glass elements has realized the compactness while effectively compensating for various aberrations. Four hybrid aspherical elements placed at ideal positions ensure high depictive performance while contributing to downsizing the overall length. In addition, three LD (low dispersion) glass elements deliver high quality images.

Minimum focus distance of 0.33m over the entire zoom range for 1:3.9 maximum magnification
The SP AF28-75mm F/2.8 XR Di sports the minimum focus distance of 0.33m over the entire zoom range, the closest distance among fast standard zoom lenses in the class. With Tamron’s conventional SP AF28-105mm F/2.8 zoom lens, the minimum focus distance changes (0.5m at 28mm/105mm but 0.44m in the 70-85mm range). However, the SP AF28-75mm F/2.8 XR Di retains the minimum focus distance of 0.33m over the entire zoom range thanks to improvements in its optical and mechanical designs. The maximum magnification ratio of 1:3.9 at the 75mm tele end enables you to enjoy close-up photography easily.

Mechanical design improvements for downsizing the maximum diameter while minimizing changes in zooming torque
By the employment of various improvements in its mechanical design, Tamron has successfully packed the complicated lens configuration into a compact body for downsizing the maximum diameter of the lens. In addition, the improved mechanical construction minimizes changes in zooming torque for enhancing operational ease. Hidden improvements are also made from the perspective of manufacturing engineering to enhance the accuracy of parts, realizing the light weight and increasing durability.