It's a great lens, but one problem so far. The lens hood is stuck in the extended position and I can't retract it. Tried turning it as hard as I can. Sounds minor, but it means I can't fit the lens into my camera case. Apart from this, the lens does take great photos handheld on my Olympus EM5. I bought it to take bird photos, and to be able to travel overseas, and it is admirably suited for these purposes.