VIVITAR Series 1 0.42X HD Fisheye Ultra Wide Angle Conversion Lens with Macro for PENTAX 18-55MM 50-200MM K-5 K-M K200D K-z K-7 K-110D K-x Multicoated High definition Optical Glass Lens Optimized for HD Digital Video and Camera Recording and for Mega Pixel Photography Infrared Compatible Uses 67mm Filters. Lightweight of 2.2 oz. with Macro Includes carrying Case & Caps.