Tamron will soon release a new ultra-wide-angle zoom lens, the 17-35mm f/2.8-4 Di OSD (Model A037), for 35mm full-frame DSLR cameras.

The new Tamron 17-35mm f/2.8-4 Di OSD for 35mm full-frame DSLR cameras. (Source: Tamron.)

Claimed as the smallest and lightest in its class, the new lens is only 90 mm long and weighs just 460 grams.

Covering focal lengths from an ultra-wide 17mm to a modest 35mm, the 17-35mm f/2.8-4 Di OSD will initially be available with a Nikon mount, which is scheduled to go on sale on 4 September at an RRP of AU$999.

The Canon mount lens will be released at a later date, which is still to be finalised. The optical construction comprises 15 elements in 10 groups and includes four LD (Low Dispersion) lens elements to minimise axial chromatic aberrations plus two GM (Glass Molded Aspherical) lenses to correct distortion and other aberrations. Advanced coating technology along with proprietary ghosting analysis simulation technology facilitate excellent backlighting performance while Tamron’s BBAR (Broad-Band Anti-Reflection) coating keep flare and ghosting to a minimum throughout the entire zoom range.

The AF drive system employs an OSD (Optimized Silent Drive) to ensure silent operation. AF performance and speed have also been significantly improved. A 7-blade diaphragm closes to a smooth, circular-shaped aperture even when stopped down by two stops from the wide-open aperture.

The new lens also benefits from Moisture-Resistant Construction and a protective fluorine coating on the surface of the front elemakes it easy to keep clean.  The new A037 is compatible with the Tamron TAP-in Console (Model TAP-01), an optional accessory that provides a USB connection to a personal computer, enabling users to easily update a lens’s firmware as well as customise features including fine adjustments to the AF.

Full details of the new lens can be found on Tamron’s website.