MF18 can adapt the lens from 49 to 82mm.
The Original Nissin MF18 comes with adaptor rings 52, 58, 62, 67, 72 and 77mm.
For those who needs 49, 55 and 82mm, the adapter ring has to be purchase seperatly.
Adapter Ring 55mm for Nissin MF18 Macro Flash use.
One unit of Nissin MF18 Macro Flash Adapter Ring 55mm.
(The picture is only showing how all the rings look like). This package only contains One unit of Nissin MF18 Macro Flash Adapter Ring 55mm.