DC-Brooklyn
Ive had this for several years. I also have a range of other Olympus lenses for the EM1 and EM10 M2, including the 12- 40 Pro, and a couple of primes . My favorite is the 14-42 EZ pancake. Its convenient, and very sharp. This 40-150 is a totally different story. Its not close to being sharp. Maybe I have a defective unit. Rarely use it because the results are so disappointing. Tried it again recently on vacation. Same results. After my latest efforts with it, Im not going to use it again.