ZEISS T coating delivers superior contrast and resolution, 5 Aspherical lenses for low distortion and corner sharpness, Large Advanced Aspherical element for wide-angle performance, 3 Extra Low Dispersion elements reduce chromatic aberration, Constant F4 max aperture maintains exposure / depth of field,

This compact full-frame ZEISS wide-angle zoom lens covers a 16mm to 35mm range with a constant maximum aperture of F4, enabling consistent depth of filed and exposure settings at any focal length. The high-performance optical design boasts ZEISS T* (T-star) coating for superior contrast and resolution, five aspherical elements including a large diameter AA (advanced aspherical) element with outstanding surface precision for low distortion and corner to corner sharpness. The SEL1635Z employs Optical SteadyShot image stabilization, Silent AF and iris (aperture) drive important for movie capture and a 7-blade circular aperture for beautiful defocused backgrounds. Ideal for Full-Frame and APS-C E-mount cameras.