There are quite a few reviews, I unfortunately have to confirm. This plastic part belongs in a delivery of a lens, Panasonic can also. Those things are not better, since they are but included, it is even noted positively. To the colleagues of Olympus's a tip: put it in to the lens, which really do not pennies from it. Even building a luxury version for people who are willing to pay more than 30 euros for something really good. Bets you deserve just as much money?