The sony 24 70mm f28 za ssm ii carl zeiss vario sonnar t lens is a high quality wide aperture zoom covering wide angle to medium telephoto this model delivers significant improvements in image quality ghost reduction and af performance over its predecessor and adds a rugged dust and moisture resistant design the lens has a zeiss t coating on its optical surfaces that minimises ghosting and flare plus aspherical and ed extra low dispersion glass elements that suppress aberration and mini