Bought knowingly

This is a goal a little gadget much talked about online.
Knowingly purchased and used on devices m4 / 3 through the adapter ring.
Construction is average, the lens itself is fairly robust but the game in the rings of focus and aperture is special. In the case of my copy are too resistant: to have a little more fluidity must be the "work" in advance otherwise we will have parasitic movements, particularly troublesome in video use (typical example for a Soft-focus)
The image has the charm of its flaws, a pretty nice blur and taken pronounced flare.