The hasselblad macro converter is designed to improve the close range performance of wide angle h system lenses although primarily aimed for use in conjunction with the hc 50 ii lens for optimum performance it can also be used with any of the other h system wide angle lenses the close range of the lens will be similar to that produced by a 65 mm extension tube the performance however will be noticeably improved compared to extension tube use the macro converter is mounted between the cam