The Macro Twin Flash 2400 can not mounted on this lens. There is no adapter ring for the flash tube holder to mount it on the lens. Filter adapters can not be used (The lens has 46 mm filter threads. These are located at the focus group, not on the lens barrel. The outer diameter of a filter should not be much larger than 46 mm, otherwise the filter would hit the lens barrel when the focus group is moved into the lens). Furthermore, the flash tubes don't tilt enough and are too far away from the optical axis to illuminate the object