For on-the-go: M.Zuiko everyday lenses offer a solution for every shooting situation, whether you need a convenient low-profile lens or a high-powered zoom. Lightweight: That's the beauty of the this lens - it's just over 4 and a half inches long collapsed and weighs only 15 ounces. Zero Optical Coating: Strongly lit scenes are always a challenge, but this lens has a secret weapon that ensures excellent results, even under such unfavorable conditions. MSC: One of this lens's most interesting features is the unique-to-Olympus Movie & Still Compatible mechanism, or MSC.