The Zeiss ZF.2 100mm f/2 Makro-Planar is an extremely sharp prime lens in the Nikon mount. Key features include:

Advanced Optical Design. People frequently use the ZF.2 100mm f/2 Makro-Planar as a long-landscape and portrait lens, in addition to using it as a macro lens. Its floating-elements optical design allows it to deliver incredibly sharp images even at f/2, from infinity to its 1.4-foot minimum focusing distance.

Manual Focus Only. This is a manual-focus only lens, but D200 and higher bodies will automatically adjust exposure and white balance if you wish. It lets you use selective focusing to isolate your subject from the background, making it excellent for scientific, industrial, and surveillance photography.

Communicates With the Camera. The ZF.2 designation adds a microchip to the lens that automatically lets the camera know time, aperture setting, and manual exposure settings, including those for cameras that are not AI-compatible. Since the lens now transmits the EXIF data, photographers no longer need to manually set the parameters. The ZF.2 lenses are optically identical to the original ZF lenses, so if these functions aren’t important to you, you can save some money by getting the original ZF mount.