Camera Lens CPL Filter 67mm Ultra Slim HD Circular Polarizer Filter for Canon EF 70-300mm f/4-5.6 IS II USM Lens, Canon EF 70-300mm f/4-5.6L IS USM Lens
iShoot 78mm Tripod Mount Ring B(W) Lens Collar Support for Canon EF 70-200mm f/2.8L USM/IS USM/IS II USM/III USM, EF 100-400mm f/4.5-5.6L IS USM, EF 35-350mm f/3.5-5.6L USM, EF 300mm f/4L IS USM