- With this adapter, you can use M58 x1 mount large format or enlarging Lens on Fuji GFX Medium Format camera bodies. - Instructions: M58 x1 mount Large format or enlarging lenses with Focusing tube and this Modify lens adapter, use for Mirrorless Camera. - Modify lens purpose, Can not focus infinitely when used directly. - Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. - Durable, high quality - Made of aluminum. Suitable for: - Lens: M58 x1 mount Large format or enlarging lenses - Camera: Fuji GFX Medium Format Camera Package - 1 x Lens Adapter.