Nikon D610 2x Teleconverter (7 Elements) + Nwv Direct Microfiber Cleaning Cloth.
Price 249.00 USD
7-elements * Multi-coated Optical Glass with anti-reflection coating * Doubles focal length of lenses * Manufacturers" Lifetime Warranty * Item Includes: Case, Protective Lens Cap, Nwv Direct Micro Fiber Cleaning Cloth