The Tamron 70-200mm f/2.8 SP Di USD for Sony is a fast-aperture telephoto lens that’s compatible with both full-frame and crop-frame A-mount cameras. Key features include:

Common Uses. The fast f/2.8 aperture makes the Tamron 70-200mm f/2.8 SP Di USD a good choice for sports photography, portraiture, and event photography. Its USD focus motor provides quick, nearly silent autofocus performance for fast-moving subjects.

High-Quality Optics. The optical design features one extra-low dispersion element with four low-dispersion elements to help minimize chromatic aberrations. It also has an advanced multi-layer coating that reduces ghosting and lens flare to improve performance. The diaphragm retains its round shape from f/2.8-5.6, providing smooth background blurring with circular out-of-focus highlights.

Compact, High-Quality Build. Its compact build features large focus and zoom rings to make it ergonomically sound. The moisture-resistant construction means it’s able to hold up in less-than-ideal shooting conditions. It includes both a removable tripod ring and a petal-type lens hood.