Tamron claims its new 17-35mm is the lightest in its class
Available for Nikon cameras from September, with a Canon version to follow, the Tamron 17-35mm f/2.8-4 Di
OSD ultra-wide zoom is around 90mm in length and weighs just 460g.
Designed for full-frame SLRs and priced at £629.99, it features 15 elements arranged in 10 groups, and includes four Low Dispersion elements and two GM (Glass Molded Aspherical) elements to minimise distortion, with a BBAR (Broad-Band Anti-Reflection) coating to cut down on reflections. Its Optimised Silent Drive autofocus system promises to operate quickly and silently.