Product picture - Jobu Design Replacement Foot for Canon IF 600mm f 4, 800mm f 5.6 & 400mm f 2.8 Lenses Jobu, Design, Replacement, Foot, Canon, IF, 600mm, f, 4, 800mm, f, 5.6, &, 400mm, f, 2.8, Lenses Click the image to close this page