Fits to the front of the EF 75-300mm f/4-5.6 III USM and EF 75-300mm f/4-5.6 III reducing 'flare' caused by light shining directly on the lens' front element. Compatibility EF 75300mm f/45.6 III USM EF 75300mm f/45.6 III EF-S 55250mm f/45.6 IS EF-S 55250mm f/45.6 IS II
