Attention! For your device is available official mobile app "All Photo Lenses" from AllPhotoLenses.com.
Download it and you will be able to work with the lens database is much faster and easier.
Not now Details
Carl Zeiss Vario-Sonnar T* 17-35 mm f/ 2.8 - fast wide-angle zoom lens with multicoating for 35mm cameras of the Contax N system.
Please see its optical design and MTF-charts in the attached description.