Sony Vario-Tessar T* E 16-70mm f/4 ZA OSS LensSony's Vario Tessar T* E 16 70mm f 4 ZA OSS is a powerful mid range zoom lens designed for Sony E mount that delivers a 35mm equivalent of 24 105mm. Its constant f 4 aperture generates highly consistent optical performance throughout the entire zoom range. Because of this you can confidently capture high quality images, even in low light shooting conditions. Sony has uniquely engineered this lens with several advanced features, including its Optical