Sony Sonnar T* FE 55mm f/1.8 ZA Lens for Sony Digital SLR Cameras - International Version (No Warranty) Sony Lens, 55mm f/1.8 ZA Lens for Sony Notable Features: Sony E Mount Full-Frame, Aperture Range: f/1.8 to f/22, Carl Zeiss T* Anti-Reflective Coating Dust- and moisture-resistant design enables ensured performance when working in inclement environmental conditions Carl Zeiss T* anti-reflective coating enhances contrast, clarity, and color reproduction by countering the effects of lens flare and ghosting Nine-blade circular diaphragm enables a smooth out-of-focus quality that is well-suited to shallow depth of field imagery