Polaroid Studio Series Lens Hood With Exclusive Pushbutton Mounting System - no more 'screwing around" With Old Fashioned Threaded Hoods For The Canon Digital EOS Rebel T3, T3i, T1i, T2i, XSI, XS, XTI, XT, 60D, 50D, 40D, 30D, 20D, 10D, 5D, 1D, 5D Mark 2, 7D Digital SLR Cameras Which Has Any Of These (18-55mm, 75-300mm, 50mm 1.4 , 55-200mm. 70-300mm) Canon Lenses Patented Push Button Mounting System Can Be Used With Virtually Any Threaded Filter Or Lens Barrel Unique Scalloped Design Prevents Lens Flare While Protecting Lens And Improving Contrast & Image Quality 5 Year Limited Warranty