The perfect addition to any manual lens collection. Doubles the focal length of the lens in use, with virtually no loss in image quality. Permits automatic diaphragm control and full aperture metering with AI cameras. Nikon Integrated Coating (NIC) increases contrast and improves color rendition. The TC-200 can be used with the Micro-Nikkor Zoom 200mm F/4 IF to produce life-size close-ups.