Canon 52mm Drop-in Circular Polarising Filter II

The Canon 52mm Drop-in Circular Polariser allows you to add filters to your Canon's Super Telephoto Lenses i.e. Canon EF 300mm f/2.8 L IS USM Lens, Canon EF 400mm f/2.8 L IS USM Lens, Canon EF 500mm f/4 L IS USM Lens and Canon EF 600mm f/4 L IS II USM Lens. The Canon drop-in polarising filter has a screw on its external side (top) that allows you to rotate the circular polariser for specific lighting condition.... More