Polaroid Studio Series .21x Super Fisheye Lens With Macro Attachment, Includes Lens Pouch and Cap Covers 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 (55-300mm, 75-300mm, 18-50mm, 28-80mm, 31mm) Pentax Lenses Mounts On Existing Lens &lt;&gt; 52mm Adapter Ring Included Eliminates Ghosting And Glare Infra-Red & Macro Capable Compatible With Video & Still Cameras Limited 10 Year Warranty