Vivitar Series 1 450mm f/4.5 lens - LeZot Camera | Sales and Camera Repair | Camera Buyers | Digital Printing
Amazon.com : Vivitar 500mm f/8.0 Telephoto Lens with 2x Teleconverter (=1000mm) + Accessory Kit for Canon EOS 60D, 6D, 7D, 5D Mark II III, Rebel T3, T3i, T4i Digital SLR Cameras :