This Tamron 70-180mm f/2.8 Di III VXD telephoto zoom lens is engineered for Sony E-mount full-frame cameras, offering a versatile short to mid-telephoto range. An impressive f/2.8 maximum aperture excels in low light scenarios and grants extensive control over depth of field. The advanced optical structure features several low dispersion and aspherical elements to mitigate various distortions, paired with a BBAR-G2 coating to enhance contrast and color fidelity by suppressing flare and ghosting. The lens boasts a high-precision floating elements system delivering consistent imaging across the entire focus spectrum. Two VXD linear motor units drive the autofocus system with rapidity and precision, while still providing the option for manual focus. The lens is tailored for use in harsh weather, with a construction resistant to moisture and a front element treated with fluorine to repel dirt and smudges.