I use the lens with my E-620 and E-520th It's really amazing how small and lightweight Olympus this 40-150mm lens has built (KB format = 80-300). (It is only slightly larger than the 14-42er (28-84) from the same series. The image quality as well as the haptics do not suffer under the absolute lightweight. The lens can be good and smooth to operate and the only price to be paid, is the relatively low light intensity, but I do not negatively noticeable sooo. Especially when you consider that to analog times such intensity for telephoto zoom was quite great. The image quality is as non-Olympus differently expect very good and relatively verzerrungesfrei. Overall, I can only express an absolute buy recommendation and give course 5 Stars.