Canon Telephoto EF 300mm f/2.8L IS USM + 2x Teleconverter (4 Elements) and Nwv Direct Microfiber Cleaning Cloth

2x (Doubler) 4-element teleconverter that doubles the focal length of any compatible high-quality optic while preserving excellent resolution and strong contrast. Designed to work with fine optics without significant degradation of image quality. Includes Nwv Direct Microfiber Cleaning Cloth for safe lens care.