I bought this lens hood: http://jjcphotography.com.au/catedetail.aspx?bid=1205&cid=73&sid=220&pid=263 to use with the Zuiko 14-42mm II R (kit lense) on the E-PL5. Problem is: it doesn't seem to fit. Or maybe I just don't know how to attach it (being a novice and all). Any advice here if I got the wrong lense hood, or how to attach it to the lens? Thanks!