Barely used Nikon TC-1.7 EII Teleconverter for sale. I have used this on my 70-200 and 300 f 2.8. Good compromise of image quality and increased reach. Asking $250 including shipping within the USA. See Nikon website for lens compatibility... http://www.nikonusa.com/en/Nikon-Products/Product/Camera-Lenses/AF-S-Teleconverter-TC-17E-II.html
I purchased this new from B&H and will ship in original box with Nikon USA docs.
Includes front and rear cap and pouch.