Comments about Kenko Kenko Teleplus Pro 300 DGX AF 1.4x Teleconverter for Nikon AF-S:

It works on my 80-400mm vr af-d and 18-200mm vr af-s lenses. For those occasions where you just want or need to be a little more closer to the subject. Best for landscapes, wild life and slow moving subjects. Considering the 1.5 crop factor of my D-70 and the 1.4x teleconverter. It turned my 80-400mm into a 168-840mm lens; the VR helped with my handheld shots. For the heck of it, it also turns your camera into a good spotting scope. Never forget that what you gain in magnification will be your loss in speed. The info is also recorded in the metadata of your pictures. It's made in Japan.