Zeiss has introduced a new series of lenses for the semi-professional market: the
ZF.2 with F bayonet for digital SLRs. Thanks to its electronic interface (CPU),
these new ZEISS lenses support all-important operations such as the automatic
mechanisms for time, aperture setting and program. The CPU also supports manual
exposure settings, including those for camera casings that are not
AI-compatible. Since the lens now transmits the EXIF data such as manufacturer,
date, metering system and exposure to the camera, photographers no longer need
to set the parameters manually.