Constant f/2.8 Aperture: Throughout its zoom range, the lens maintains a fast f/2.8 aperture, ideal for low-light conditions and consistent depth of field control.

Superior Optical Performance: Incorporates six low-dispersion and three aspherical elements to minimize chromatic aberrations and ensure sharp, clear images.

Compact and Lightweight Design: Stands out as one of the most portable lenses in its class, making it convenient for photographers on the move.

Advanced Autofocus Mechanism: Features Tamron's VXD linear motor focus system for quick, precise, and smooth autofocus performance.

Weather-Sealed Durability: The lens boasts moisture-resistant construction, offering reliability and peace of mind in various shooting environments.

Versatile Zoom Range: Offers a flexible 70-180mm zoom range, catering to a wide range of photography genres from portraits to wildlife.

Enhanced Bokeh Effect: The rounded 9-blade diaphragm contributes to a pleasing out-of-focus bokeh, enhancing the aesthetic quality of images.

Specialized Coatings: Equipped with BBAR-G2 and fluorine coatings to reduce lens flare and ghosting, ensuring high-quality image results.

Dual VXD Motors: The inclusion of dual VXD linear AF motors facilitates fast, quiet, and accurate autofocus, crucial for both stills and video.

Close-Up Performance: A floating elements system allows for remarkable close-up shooting capabilities, expanding creative possibilities.

Practical Specifications: With a minimum focusing distance of 0.85m, a maximum magnification ratio of 1:4.6, and a convenient 67mm filter diameter, this lens is designed for practical use in a variety of settings.