Albinar 500mm-1000mm F/8 Super Telephoto Manual Lens For Pentax K PK Mount Cameras K-5 K-r x 7 Kr Kx K7 K5 K20D K-m Km K2000 K200D K100D *ist D DS DL DS2 DL2 K110D K10D 500mm f/8-32 Super Telephoto Lens + 2X Teleconverter Manual Focus Telephoto Lens to use with DSLR SLR Cameras Multi Coated low-dispersion glass, anti-reflection coating Create Sharp High Quality Images Comes with Lens Pouch and Protective Caps