Polaroid Studio Series Lens Hood With Exclusive Pushbutton Mounting System - no more 'screwing around" With Old Fashioned Threaded Hoods For The Pentax K-3, K-50, K-500, K-01, K-30, K-X, K-7, K-5, K-5 II, K-R, 645D, K20D, K200D, K2000, K10D, K2000, K1000, K100D Super, K110D, *ist D, *ist DL, *ist DS, *ist DS2 Digital SLR Cameras Which Has Any Of These (18-55mm, 50-200mm) Pentax 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