N.E.W is ranked the #1 Certified Call Center in the service plan industry 3 years in a row by J.D Power & Assoc.
Superior optical formula teleconverter for use only with the following Contax lenses:
100mm f/4135mm f/2 & f/2.8180mm f/2.8200mm f/2 & f/4300mm f/2.8 & f/4500mm f/4.5 & f/81000mm f/5.6