The Nikon AF-S Teleconverter TC-14E II 1.4x Lens is a high-quality teleconverter designed for Nikon cameras. With a maximum aperture of f/2.8, it provides a seamless fit with Nikon AF mount compatibility. Made of durable plastic, this teleconverter is lightweight and compact, measuring 0.9 inches in length and 2.5 inches in height. Manufactured in Japan by Nikon, this unit is a must-have for photographers looking to extend the reach of their lenses with auto focus capabilities.