I think this article is a very useful accessory, the assembly was no problem, no jam or anything. From the Geli is just as easy. The poorer reviews can be seen that the aperture is no good, I can not understand that. With the kit lens shooting in strong sunlight are now possible without problems, stray light is almost elemeniert, and thus most Henden halos disappeared. In addition, the ring ensures a small lens cover, fast times again on photo tour on vacation or initiated so times with the lens somewhere and have the lens is damaged, this risk is minimized by the EW-60C Stark.