Enhance your photography skills with the Vivitar Series 1 4-Element 2x Teleconverter Lens, compatible with Canon EOS and Vivitar cameras. With a maximum aperture of f/1.2 and a focal length of 55mm, this manual focus lens captures stunning photos with its 4-element design and 2x magnification. This plastic lens, manufactured in Japan, boasts compatibility with 52mm filters and 30mm lens fronts. Measuring 3 inches in length, 3 inches in height, and 4 inches in width, this unit weighs only 3 ounces. Don't miss out on the opportunity to add this teleconverter to your camera bag.