Tamron 17-35mm F/2.8-4 Di OSD

The Tamron 17-35mm F/2.8-4 Di OSD is an ultra wide-angle zoom lens designed for full-frame DSLR cameras, available in Canon EF and Nikon F mounts. With a versatile focal length range from 17mm to 35mm and a bright maximum aperture of f/2.8 at the wide end, this lens is well-suited for landscape, architecture, and interior photography. The optical design includes 15 elements in 10 groups, featuring four Low Dispersion elements and two Glass Molded Aspherical elements to minimize aberrations and deliver sharp, high-contrast images. The lens employs an Optimized Silent Drive (OSD) motor for quiet and precise autofocus performance. Its compact and lightweight design enhances portability, while the Moisture-Resistant Construction and fluorine coating on the front element provide added durability and protection against the elements.