The Nikon 200mm f/4 ED-IF AF Micro is a telephoto-range macro lens for Nikon F-mount DSLRs. Key features include:

Greater Working Distance. The long 200mm focal length enables a great working distance (minimum focus distance: 19.4" for 1:1 macro, yielding a working distance of around 10" or so), which is especially useful when shooting insects or other small objects that could be disturbed at very close distances.

Internal Focusing. The barrel of the lens doesn’t extend during focusing, further ensuring you won’t disturb your subject.

High-Quality Optics. Two ED elements are used to produce sharp, high-contrast images.