This Olympus LC-37B Lens Cap features the PEN F Logo from 1963 and is designed both to add a little extra flair to your PEN camera and to protect the front lens element from dust and scratches. The cap fits the M.ZUIKO DIGITAL 17mm f2.8 Pancake, M.ZUIKO DIGITAL 14-42mm f3.5-5.6 II (R) and M.ZUIKO DIGITAL 45mm f1.8 Micro Four Thirds lenses.