A: None. Teleconverters are specialized optics designed to be used with (surprise!) telephoto or telephoto zoom lenses. Adding teleconverter compatibility to a lens formula increases the complexity of the design and cost of manufacture. For that reason, only a handful of pro-grade Nikkors can take a TC. If you're dying to own one, the least expensive Nikon lens to use it with is the 70– 200mm f/2.8 Nikkor ($1,598, street). Then add the cost of the converter. If you're just looking for more reach, go with your kit zoom's stablemate, the 55–200mm f/4.5–5.6. At about $170, street, it's nearly half the price of many Nikon teleconverters.